Home / 87,867.60-131,801.40-83,785.20

Finding the Fourth Proportional to 87,867.60, 131,801.40 and 83,785.20

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Solution

The fourth proportional to 87,867.60, 131,801.40 and 83,785.20 is: 125,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.60 : 131,801.40 = 83,785.20 : x
  2. Step 2: Convert to fraction form
    87,867.60/131,801.40 = 83,785.20/x
  3. Step 3: Cross multiply
    87,867.60x = 131,801.40 × 83,785.20
  4. Step 4: Simplify right side
    87,867.60x = 11,043,006,659.28
  5. Step 5: Solve for x
    x = 11,043,006,659.28/87,867.60
  6. Step 6: Final answer
    x = 125,677.80

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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.