Home / 126,117.12-173,943.17-80,799.30

Finding the Fourth Proportional to 126,117.12, 173,943.17 and 80,799.30

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Solution

The fourth proportional to 126,117.12, 173,943.17 and 80,799.30 is: 111,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,117.12 : 173,943.17 = 80,799.30 : x
  2. Step 2: Convert to fraction form
    126,117.12/173,943.17 = 80,799.30/x
  3. Step 3: Cross multiply
    126,117.12x = 173,943.17 × 80,799.30
  4. Step 4: Simplify right side
    126,117.12x = 14,054,486,375.78
  5. Step 5: Solve for x
    x = 14,054,486,375.78/126,117.12
  6. Step 6: Final answer
    x = 111,439.96

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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.