Home / 125,249.18-187,874.15-30,479.38

Finding the Fourth Proportional to 125,249.18, 187,874.15 and 30,479.38

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Solution

The fourth proportional to 125,249.18, 187,874.15 and 30,479.38 is: 45,719.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,249.18 : 187,874.15 = 30,479.38 : x
  2. Step 2: Convert to fraction form
    125,249.18/187,874.15 = 30,479.38/x
  3. Step 3: Cross multiply
    125,249.18x = 187,874.15 × 30,479.38
  4. Step 4: Simplify right side
    125,249.18x = 5,726,287,102.24
  5. Step 5: Solve for x
    x = 5,726,287,102.24/125,249.18
  6. Step 6: Final answer
    x = 45,719.16

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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.