Xiao Ming's weight is 36 kg, his younger brother weighs half of his weight, and his father's weight is four times that of his younger brother, how many kilograms does his father weigh?
小明的体重是36千克，弟弟重是他的一半，而爸爸的体重是弟弟的4倍，爸爸的体重是多少千克？
<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<gadget id="calculator">18 * 4</gadget>
<output>72</output>

<result>72</result>