Home / 127,734.72-176,255.82-72,542.13

Finding the Fourth Proportional to 127,734.72, 176,255.82 and 72,542.13

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Solution

The fourth proportional to 127,734.72, 176,255.82 and 72,542.13 is: 100,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,734.72 : 176,255.82 = 72,542.13 : x
  2. Step 2: Convert to fraction form
    127,734.72/176,255.82 = 72,542.13/x
  3. Step 3: Cross multiply
    127,734.72x = 176,255.82 × 72,542.13
  4. Step 4: Simplify right side
    127,734.72x = 12,785,972,607.70
  5. Step 5: Solve for x
    x = 12,785,972,607.70/127,734.72
  6. Step 6: Final answer
    x = 100,097.86

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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.