Home / 87,134.09-120,148.99-60,229.89

Finding the Fourth Proportional to 87,134.09, 120,148.99 and 60,229.89

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Solution

The fourth proportional to 87,134.09, 120,148.99 and 60,229.89 is: 83,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,134.09 : 120,148.99 = 60,229.89 : x
  2. Step 2: Convert to fraction form
    87,134.09/120,148.99 = 60,229.89/x
  3. Step 3: Cross multiply
    87,134.09x = 120,148.99 × 60,229.89
  4. Step 4: Simplify right side
    87,134.09x = 7,236,560,451.31
  5. Step 5: Solve for x
    x = 7,236,560,451.31/87,134.09
  6. Step 6: Final answer
    x = 83,050.85

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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.