Finding the Fourth Proportional to 115,207.75, 158,986.70 and 62,215.75
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Solution
The fourth proportional to 115,207.75, 158,986.70 and 62,215.75 is: 85,857.74
Step by Step Solution
- Step 1: Write the proportion equation
115,207.75 : 158,986.70 = 62,215.75 : x - Step 2: Convert to fraction form
115,207.75/158,986.70 = 62,215.75/x - Step 3: Cross multiply
115,207.75x = 158,986.70 × 62,215.75 - Step 4: Simplify right side
115,207.75x = 9,891,476,780.53 - Step 5: Solve for x
x = 9,891,476,780.53/115,207.75 - Step 6: Final answer
x = 85,857.74
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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.