Finding the Fourth Proportional to 146,672.43, 202,391.20 and 82,132.70
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Solution
The fourth proportional to 146,672.43, 202,391.20 and 82,132.70 is: 113,333.74
Step by Step Solution
- Step 1: Write the proportion equation
146,672.43 : 202,391.20 = 82,132.70 : x - Step 2: Convert to fraction form
146,672.43/202,391.20 = 82,132.70/x - Step 3: Cross multiply
146,672.43x = 202,391.20 × 82,132.70 - Step 4: Simplify right side
146,672.43x = 16,622,935,712.24 - Step 5: Solve for x
x = 16,622,935,712.24/146,672.43 - Step 6: Final answer
x = 113,333.74
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.