Finding the Fourth Proportional to 156,107.44, 215,414.58 and 91,589.68
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Solution
The fourth proportional to 156,107.44, 215,414.58 and 91,589.68 is: 126,385.73
Step by Step Solution
- Step 1: Write the proportion equation
156,107.44 : 215,414.58 = 91,589.68 : x - Step 2: Convert to fraction form
156,107.44/215,414.58 = 91,589.68/x - Step 3: Cross multiply
156,107.44x = 215,414.58 × 91,589.68 - Step 4: Simplify right side
156,107.44x = 19,729,752,449.53 - Step 5: Solve for x
x = 19,729,752,449.53/156,107.44 - Step 6: Final answer
x = 126,385.73
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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.