Finding the Fourth Proportional to 138,540.92, 207,471.18 and 88,473.20
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Solution
The fourth proportional to 138,540.92, 207,471.18 and 88,473.20 is: 132,492.55
Step by Step Solution
- Step 1: Write the proportion equation
138,540.92 : 207,471.18 = 88,473.20 : x - Step 2: Convert to fraction form
138,540.92/207,471.18 = 88,473.20/x - Step 3: Cross multiply
138,540.92x = 207,471.18 × 88,473.20 - Step 4: Simplify right side
138,540.92x = 18,355,639,202.38 - Step 5: Solve for x
x = 18,355,639,202.38/138,540.92 - Step 6: Final answer
x = 132,492.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.