Home / 87,785.30-131,483.55-72,233.30

Finding the Fourth Proportional to 87,785.30, 131,483.55 and 72,233.30

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Solution

The fourth proportional to 87,785.30, 131,483.55 and 72,233.30 is: 108,189.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,785.30 : 131,483.55 = 72,233.30 : x
  2. Step 2: Convert to fraction form
    87,785.30/131,483.55 = 72,233.30/x
  3. Step 3: Cross multiply
    87,785.30x = 131,483.55 × 72,233.30
  4. Step 4: Simplify right side
    87,785.30x = 9,497,490,712.22
  5. Step 5: Solve for x
    x = 9,497,490,712.22/87,785.30
  6. Step 6: Final answer
    x = 108,189.99

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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.