Home / 87,847.93-131,903.12-86,535.73

Finding the Fourth Proportional to 87,847.93, 131,903.12 and 86,535.73

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Solution

The fourth proportional to 87,847.93, 131,903.12 and 86,535.73 is: 129,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,847.93 : 131,903.12 = 86,535.73 : x
  2. Step 2: Convert to fraction form
    87,847.93/131,903.12 = 86,535.73/x
  3. Step 3: Cross multiply
    87,847.93x = 131,903.12 × 86,535.73
  4. Step 4: Simplify right side
    87,847.93x = 11,414,332,778.48
  5. Step 5: Solve for x
    x = 11,414,332,778.48/87,847.93
  6. Step 6: Final answer
    x = 129,932.86

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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.