Home / 87,370.85-130,864.19-72,206.10

Finding the Fourth Proportional to 87,370.85, 130,864.19 and 72,206.10

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Solution

The fourth proportional to 87,370.85, 130,864.19 and 72,206.10 is: 108,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,370.85 : 130,864.19 = 72,206.10 : x
  2. Step 2: Convert to fraction form
    87,370.85/130,864.19 = 72,206.10/x
  3. Step 3: Cross multiply
    87,370.85x = 130,864.19 × 72,206.10
  4. Step 4: Simplify right side
    87,370.85x = 9,449,192,428.53
  5. Step 5: Solve for x
    x = 9,449,192,428.53/87,370.85
  6. Step 6: Final answer
    x = 108,150.41

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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.