Home / 125,026.20-187,489.89-40,765.65

Finding the Fourth Proportional to 125,026.20, 187,489.89 and 40,765.65

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Solution

The fourth proportional to 125,026.20, 187,489.89 and 40,765.65 is: 61,132.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,026.20 : 187,489.89 = 40,765.65 : x
  2. Step 2: Convert to fraction form
    125,026.20/187,489.89 = 40,765.65/x
  3. Step 3: Cross multiply
    125,026.20x = 187,489.89 × 40,765.65
  4. Step 4: Simplify right side
    125,026.20x = 7,643,147,234.28
  5. Step 5: Solve for x
    x = 7,643,147,234.28/125,026.20
  6. Step 6: Final answer
    x = 61,132.36

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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.