The students went to visit the chrysanthemum exhibition, 154 people from the sixth grade went, and the number of the fifth grade went to the sixth grade (10/11). There are 4 more people in the fifth grade than in the fourth grade (4/5). How many people went to the fourth grade? (solution with equation)
同学们去参观菊展，六年级去了154人，五年级去的人数是六年级的(10/11)．五年级去的人数比四年级的(4/5)多4人．四年级去了多少人？(用方程解答)
<gadget id="calculator">10 / 11</gadget>
<output>10/11 = around 0.909091</output>

<gadget id="calculator">154 * (10/11)</gadget>
<output>140</output>

<gadget id="calculator">140 - 4</gadget>
<output>136</output>

<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">136 * (5/4)</gadget>
<output>170</output>

<result>170</result>