100/2 = <<100/2=50>>50 people in the theater have brown eyes.

100/4 = <<100/4=25>>25 people in the theater have black eyes.

There are 50+25+19 = <<50+25+19=94>>94 people in the theater with either brown, black, or blue eyes.

There are 100-94 = <<100-94=6>>6 people in the theater with green eyes.

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
There are 100 people in a theater. If 19 of these people have blue eyes, half of them have brown eyes, a quarter have black eyes, and the rest have green eyes, how many of them have green eyes?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
6
There are 100 people in a theater. If 19 of these people have blue eyes, half of them have brown eyes, a quarter have black eyes, and the rest have green eyes, how many of them have green eyes?
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