Home / 126,984.52-175,256.45-78,601.96

Finding the Fourth Proportional to 126,984.52, 175,256.45 and 78,601.96

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Solution

The fourth proportional to 126,984.52, 175,256.45 and 78,601.96 is: 108,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,984.52 : 175,256.45 = 78,601.96 : x
  2. Step 2: Convert to fraction form
    126,984.52/175,256.45 = 78,601.96/x
  3. Step 3: Cross multiply
    126,984.52x = 175,256.45 × 78,601.96
  4. Step 4: Simplify right side
    126,984.52x = 13,775,500,472.64
  5. Step 5: Solve for x
    x = 13,775,500,472.64/126,984.52
  6. Step 6: Final answer
    x = 108,481.73

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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.