Subtract 98.767 gm from 172.4 kg giving the result in appropriate significant figures.

Explanation

To solve the problem of subtracting 98.767 gm from 172.4 kg and expressing the result in appropriate significant figures, follow these steps:

### Step 1: Convert grams to kilograms
First, we need to convert 98.767 grams into kilograms because the other measurement is in kilograms.

\[ 98.767 \, \text{gm} = 98.767 \times 10^{-3} \, \text{kg} = 0.098767 \, \text{kg} \]
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