Home / 87,521.10-131,249.25-68,837.46

Finding the Fourth Proportional to 87,521.10, 131,249.25 and 68,837.46

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Solution

The fourth proportional to 87,521.10, 131,249.25 and 68,837.46 is: 103,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,521.10 : 131,249.25 = 68,837.46 : x
  2. Step 2: Convert to fraction form
    87,521.10/131,249.25 = 68,837.46/x
  3. Step 3: Cross multiply
    87,521.10x = 131,249.25 × 68,837.46
  4. Step 4: Simplify right side
    87,521.10x = 9,034,864,996.91
  5. Step 5: Solve for x
    x = 9,034,864,996.91/87,521.10
  6. Step 6: Final answer
    x = 103,230.71

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1.5x scale

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.