Finding the Fourth Proportional to 134,474.40, 201,711.60 and 87,472.80
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Solution
The fourth proportional to 134,474.40, 201,711.60 and 87,472.80 is: 131,209.20
Step by Step Solution
- Step 1: Write the proportion equation
134,474.40 : 201,711.60 = 87,472.80 : x - Step 2: Convert to fraction form
134,474.40/201,711.60 = 87,472.80/x - Step 3: Cross multiply
134,474.40x = 201,711.60 × 87,472.80 - Step 4: Simplify right side
134,474.40x = 17,644,278,444.48 - Step 5: Solve for x
x = 17,644,278,444.48/134,474.40 - Step 6: Final answer
x = 131,209.20
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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.