Finding the Fourth Proportional to 132,428.20, 182,754.70 and 80,748.32
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Solution
The fourth proportional to 132,428.20, 182,754.70 and 80,748.32 is: 111,434.99
Step by Step Solution
- Step 1: Write the proportion equation
132,428.20 : 182,754.70 = 80,748.32 : x - Step 2: Convert to fraction form
132,428.20/182,754.70 = 80,748.32/x - Step 3: Cross multiply
132,428.20x = 182,754.70 × 80,748.32 - Step 4: Simplify right side
132,428.20x = 14,757,134,997.10 - Step 5: Solve for x
x = 14,757,134,997.10/132,428.20 - Step 6: Final answer
x = 111,434.99
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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.