Home / 126,032.20-173,892.18-78,281.80

Finding the Fourth Proportional to 126,032.20, 173,892.18 and 78,281.80

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Solution

The fourth proportional to 126,032.20, 173,892.18 and 78,281.80 is: 108,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,032.20 : 173,892.18 = 78,281.80 : x
  2. Step 2: Convert to fraction form
    126,032.20/173,892.18 = 78,281.80/x
  3. Step 3: Cross multiply
    126,032.20x = 173,892.18 × 78,281.80
  4. Step 4: Simplify right side
    126,032.20x = 13,612,592,856.32
  5. Step 5: Solve for x
    x = 13,612,592,856.32/126,032.20
  6. Step 6: Final answer
    x = 108,008.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.