Finding the Fourth Proportional to 87,537.80, 131,306.70 and 82,929.80
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Solution
The fourth proportional to 87,537.80, 131,306.70 and 82,929.80 is: 124,394.70
Step by Step Solution
- Step 1: Write the proportion equation
87,537.80 : 131,306.70 = 82,929.80 : x - Step 2: Convert to fraction form
87,537.80/131,306.70 = 82,929.80/x - Step 3: Cross multiply
87,537.80x = 131,306.70 × 82,929.80 - Step 4: Simplify right side
87,537.80x = 10,889,238,369.66 - Step 5: Solve for x
x = 10,889,238,369.66/87,537.80 - Step 6: Final answer
x = 124,394.70
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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.