Home / 87,337.83-120,249.90-79,356.18

Finding the Fourth Proportional to 87,337.83, 120,249.90 and 79,356.18

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Solution

The fourth proportional to 87,337.83, 120,249.90 and 79,356.18 is: 109,260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,337.83 : 120,249.90 = 79,356.18 : x
  2. Step 2: Convert to fraction form
    87,337.83/120,249.90 = 79,356.18/x
  3. Step 3: Cross multiply
    87,337.83x = 120,249.90 × 79,356.18
  4. Step 4: Simplify right side
    87,337.83x = 9,542,572,709.38
  5. Step 5: Solve for x
    x = 9,542,572,709.38/87,337.83
  6. Step 6: Final answer
    x = 109,260.47

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1.5x scale

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.