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Finding the Fourth Proportional to 125,549.96, 173,288.84 and 71,866

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Solution

The fourth proportional to 125,549.96, 173,288.84 and 71,866 is: 99,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,549.96 : 173,288.84 = 71,866 : x
  2. Step 2: Convert to fraction form
    125,549.96/173,288.84 = 71,866/x
  3. Step 3: Cross multiply
    125,549.96x = 173,288.84 × 71,866
  4. Step 4: Simplify right side
    125,549.96x = 12,453,575,775.44
  5. Step 5: Solve for x
    x = 12,453,575,775.44/125,549.96
  6. Step 6: Final answer
    x = 99,192.19

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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.