The students visited the planetarium, 154 people went to the sixth grade, the number of the fifth grade went to the sixth grade (10/11), and the number of the fourth grade went to the fifth grade (4/5). How many people went to the fourth grade?
同学们参观天文馆，六年级去了154人，五年级去的人数是六年级的(10/11)，四年级去的人数是五年级的(4/5)．四年级去了多少人？
<gadget id="calculator">10 / 11</gadget>
<output>10/11 = around 0.909091</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">154 * (10/11) * (4/5)</gadget>
<output>112</output>

<result>112</result>