Finding the Fourth Proportional to 115,909.80, 173,864.70 and 53,701.80
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Solution
The fourth proportional to 115,909.80, 173,864.70 and 53,701.80 is: 80,552.70
Step by Step Solution
- Step 1: Write the proportion equation
115,909.80 : 173,864.70 = 53,701.80 : x - Step 2: Convert to fraction form
115,909.80/173,864.70 = 53,701.80/x - Step 3: Cross multiply
115,909.80x = 173,864.70 × 53,701.80 - Step 4: Simplify right side
115,909.80x = 9,336,847,346.46 - Step 5: Solve for x
x = 9,336,847,346.46/115,909.80 - Step 6: Final answer
x = 80,552.70
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1.5x scale
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.