Home / 126,177.38-174,127.62-71,720.91

Finding the Fourth Proportional to 126,177.38, 174,127.62 and 71,720.91

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Solution

The fourth proportional to 126,177.38, 174,127.62 and 71,720.91 is: 98,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,177.38 : 174,127.62 = 71,720.91 : x
  2. Step 2: Convert to fraction form
    126,177.38/174,127.62 = 71,720.91/x
  3. Step 3: Cross multiply
    126,177.38x = 174,127.62 × 71,720.91
  4. Step 4: Simplify right side
    126,177.38x = 12,488,591,631.49
  5. Step 5: Solve for x
    x = 12,488,591,631.49/126,177.38
  6. Step 6: Final answer
    x = 98,976.47

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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.