Home / 87,321.29-131,091.38-70,006.73

Finding the Fourth Proportional to 87,321.29, 131,091.38 and 70,006.73

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Solution

The fourth proportional to 87,321.29, 131,091.38 and 70,006.73 is: 105,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,321.29 : 131,091.38 = 70,006.73 : x
  2. Step 2: Convert to fraction form
    87,321.29/131,091.38 = 70,006.73/x
  3. Step 3: Cross multiply
    87,321.29x = 131,091.38 × 70,006.73
  4. Step 4: Simplify right side
    87,321.29x = 9,177,278,494.95
  5. Step 5: Solve for x
    x = 9,177,278,494.95/87,321.29
  6. Step 6: Final answer
    x = 105,097.83

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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.