Finding the Fourth Proportional to 129,635.52, 194,454.16 and 36,142.08
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Solution
The fourth proportional to 129,635.52, 194,454.16 and 36,142.08 is: 54,213.37
Step by Step Solution
- Step 1: Write the proportion equation
129,635.52 : 194,454.16 = 36,142.08 : x - Step 2: Convert to fraction form
129,635.52/194,454.16 = 36,142.08/x - Step 3: Cross multiply
129,635.52x = 194,454.16 × 36,142.08 - Step 4: Simplify right side
129,635.52x = 7,027,977,807.05 - Step 5: Solve for x
x = 7,027,977,807.05/129,635.52 - Step 6: Final answer
x = 54,213.37
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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.