Four classes in the third grade went out to participate in the "I Love Science" activity together. Each class was divided into 3 groups on average, with 16 students in each group. How many people in the third grade participated in this activity?
三年级4个班同学，一起外出参加"我爱科学"活动，每个班平均分成3组，每组16人，三年级一共有多少人参加这次活动？
<gadget id="calculator">4 * 3 * 16</gadget>
<output>192</output>

<result>192</result>