Finding the Fourth Proportional to 127,867.38, 176,456.99 and 71,278.75
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Solution
The fourth proportional to 127,867.38, 176,456.99 and 71,278.75 is: 98,364.68
Step by Step Solution
- Step 1: Write the proportion equation
127,867.38 : 176,456.99 = 71,278.75 : x - Step 2: Convert to fraction form
127,867.38/176,456.99 = 71,278.75/x - Step 3: Cross multiply
127,867.38x = 176,456.99 × 71,278.75 - Step 4: Simplify right side
127,867.38x = 12,577,633,675.96 - Step 5: Solve for x
x = 12,577,633,675.96/127,867.38 - Step 6: Final answer
x = 98,364.68
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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.