Home / 126,132.39-173,964.24-80,814.60

Finding the Fourth Proportional to 126,132.39, 173,964.24 and 80,814.60

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Solution

The fourth proportional to 126,132.39, 173,964.24 and 80,814.60 is: 111,461.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,132.39 : 173,964.24 = 80,814.60 : x
  2. Step 2: Convert to fraction form
    126,132.39/173,964.24 = 80,814.60/x
  3. Step 3: Cross multiply
    126,132.39x = 173,964.24 × 80,814.60
  4. Step 4: Simplify right side
    126,132.39x = 14,058,850,469.90
  5. Step 5: Solve for x
    x = 14,058,850,469.90/126,132.39
  6. Step 6: Final answer
    x = 111,461.06

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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.