Home / 126,872.57-175,089.85-70,280.30

Finding the Fourth Proportional to 126,872.57, 175,089.85 and 70,280.30

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Solution

The fourth proportional to 126,872.57, 175,089.85 and 70,280.30 is: 96,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,872.57 : 175,089.85 = 70,280.30 : x
  2. Step 2: Convert to fraction form
    126,872.57/175,089.85 = 70,280.30/x
  3. Step 3: Cross multiply
    126,872.57x = 175,089.85 × 70,280.30
  4. Step 4: Simplify right side
    126,872.57x = 12,305,367,446.98
  5. Step 5: Solve for x
    x = 12,305,367,446.98/126,872.57
  6. Step 6: Final answer
    x = 96,989.97

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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.