Home / 126,985.77-175,204.89-100,044.77

Finding the Fourth Proportional to 126,985.77, 175,204.89 and 100,044.77

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Solution

The fourth proportional to 126,985.77, 175,204.89 and 100,044.77 is: 138,033.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,985.77 : 175,204.89 = 100,044.77 : x
  2. Step 2: Convert to fraction form
    126,985.77/175,204.89 = 100,044.77/x
  3. Step 3: Cross multiply
    126,985.77x = 175,204.89 × 100,044.77
  4. Step 4: Simplify right side
    126,985.77x = 17,528,332,046.90
  5. Step 5: Solve for x
    x = 17,528,332,046.90/126,985.77
  6. Step 6: Final answer
    x = 138,033.83

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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.