Finding the Fourth Proportional to 125,805.48, 173,609.08 and 69,217.80
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Solution
The fourth proportional to 125,805.48, 173,609.08 and 69,217.80 is: 95,519.20
Step by Step Solution
- Step 1: Write the proportion equation
125,805.48 : 173,609.08 = 69,217.80 : x - Step 2: Convert to fraction form
125,805.48/173,609.08 = 69,217.80/x - Step 3: Cross multiply
125,805.48x = 173,609.08 × 69,217.80 - Step 4: Simplify right side
125,805.48x = 12,016,838,577.62 - Step 5: Solve for x
x = 12,016,838,577.62/125,805.48 - Step 6: Final answer
x = 95,519.20
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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.