Xiao Wang is 172 cm tall, and his younger brother's height is (3/4) of his height, so what is his younger brother's height in cm?
小王身高172厘米，他弟弟的身高是他身高的(3/4)，则他弟弟身高是多少厘米．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">172 * (3/4)</gadget>
<output>129</output>

<result>129</result>