Home / 126,982.85-175,200.89-100,041.75

Finding the Fourth Proportional to 126,982.85, 175,200.89 and 100,041.75

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Solution

The fourth proportional to 126,982.85, 175,200.89 and 100,041.75 is: 138,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,982.85 : 175,200.89 = 100,041.75 : x
  2. Step 2: Convert to fraction form
    126,982.85/175,200.89 = 100,041.75/x
  3. Step 3: Cross multiply
    126,982.85x = 175,200.89 × 100,041.75
  4. Step 4: Simplify right side
    126,982.85x = 17,527,403,136.95
  5. Step 5: Solve for x
    x = 17,527,403,136.95/126,982.85
  6. Step 6: Final answer
    x = 138,029.69

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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.