Home / 126,951.75-175,199.13-72,508.65

Finding the Fourth Proportional to 126,951.75, 175,199.13 and 72,508.65

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Solution

The fourth proportional to 126,951.75, 175,199.13 and 72,508.65 is: 100,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,951.75 : 175,199.13 = 72,508.65 : x
  2. Step 2: Convert to fraction form
    126,951.75/175,199.13 = 72,508.65/x
  3. Step 3: Cross multiply
    126,951.75x = 175,199.13 × 72,508.65
  4. Step 4: Simplify right side
    126,951.75x = 12,703,452,397.47
  5. Step 5: Solve for x
    x = 12,703,452,397.47/126,951.75
  6. Step 6: Final answer
    x = 100,065.20

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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.