Home / 87,198.92-130,876.14-40,478.12

Finding the Fourth Proportional to 87,198.92, 130,876.14 and 40,478.12

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Solution

The fourth proportional to 87,198.92, 130,876.14 and 40,478.12 is: 60,753.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,198.92 : 130,876.14 = 40,478.12 : x
  2. Step 2: Convert to fraction form
    87,198.92/130,876.14 = 40,478.12/x
  3. Step 3: Cross multiply
    87,198.92x = 130,876.14 × 40,478.12
  4. Step 4: Simplify right side
    87,198.92x = 5,297,620,100.06
  5. Step 5: Solve for x
    x = 5,297,620,100.06/87,198.92
  6. Step 6: Final answer
    x = 60,753.28

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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.