Finding the Fourth Proportional to 147,387.99, 203,337.68 and 90,700.95
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Solution
The fourth proportional to 147,387.99, 203,337.68 and 90,700.95 is: 125,131.77
Step by Step Solution
- Step 1: Write the proportion equation
147,387.99 : 203,337.68 = 90,700.95 : x - Step 2: Convert to fraction form
147,387.99/203,337.68 = 90,700.95/x - Step 3: Cross multiply
147,387.99x = 203,337.68 × 90,700.95 - Step 4: Simplify right side
147,387.99x = 18,442,919,956.86 - Step 5: Solve for x
x = 18,442,919,956.86/147,387.99 - Step 6: Final answer
x = 125,131.77
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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.