Finding the Fourth Proportional to 121,861.92, 182,793.84 and 42,958.08
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Solution
The fourth proportional to 121,861.92, 182,793.84 and 42,958.08 is: 64,437.46
Step by Step Solution
- Step 1: Write the proportion equation
121,861.92 : 182,793.84 = 42,958.08 : x - Step 2: Convert to fraction form
121,861.92/182,793.84 = 42,958.08/x - Step 3: Cross multiply
121,861.92x = 182,793.84 × 42,958.08 - Step 4: Simplify right side
121,861.92x = 7,852,472,402.23 - Step 5: Solve for x
x = 7,852,472,402.23/121,861.92 - Step 6: Final answer
x = 64,437.46
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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.