Xiao Ming used his vacation time to go to the clinic for myopia treatment. After talking with the doctor, he learned that the myopia condition of students is getting worse and worse. In the past year, 120 people were treated in the clinic. Last year it was 1.3 times that of the year before, and this year it is 1.5 times that of last year. How many people came to the clinic for myopia treatment last year?
小明利用假期时间去诊所治疗近视，通过跟医生交谈，他得知目前学生近视状况越来越严重，前年来诊所治疗的有120人，去年是前年1.3倍，今年则是去年的1.5倍．去年来诊所治疗近视的有多少人？
<gadget id="calculator">120 * 1.3</gadget>
<output>156</output>

<result>156</result>