Home / 83,727.52-126,193.36-72,180.16

Finding the Fourth Proportional to 83,727.52, 126,193.36 and 72,180.16

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Solution

The fourth proportional to 83,727.52, 126,193.36 and 72,180.16 is: 108,789.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,727.52 : 126,193.36 = 72,180.16 : x
  2. Step 2: Convert to fraction form
    83,727.52/126,193.36 = 72,180.16/x
  3. Step 3: Cross multiply
    83,727.52x = 126,193.36 × 72,180.16
  4. Step 4: Simplify right side
    83,727.52x = 9,108,656,915.74
  5. Step 5: Solve for x
    x = 9,108,656,915.74/83,727.52
  6. Step 6: Final answer
    x = 108,789.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.