Home / 87,755.18-131,632.76-74,469.15

Finding the Fourth Proportional to 87,755.18, 131,632.76 and 74,469.15

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Solution

The fourth proportional to 87,755.18, 131,632.76 and 74,469.15 is: 111,703.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,755.18 : 131,632.76 = 74,469.15 : x
  2. Step 2: Convert to fraction form
    87,755.18/131,632.76 = 74,469.15/x
  3. Step 3: Cross multiply
    87,755.18x = 131,632.76 × 74,469.15
  4. Step 4: Simplify right side
    87,755.18x = 9,802,579,935.53
  5. Step 5: Solve for x
    x = 9,802,579,935.53/87,755.18
  6. Step 6: Final answer
    x = 111,703.73

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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.