Home / 98,517.52-135,778.40-74,586.88

Finding the Fourth Proportional to 98,517.52, 135,778.40 and 74,586.88

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Solution

The fourth proportional to 98,517.52, 135,778.40 and 74,586.88 is: 102,796.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,517.52 : 135,778.40 = 74,586.88 : x
  2. Step 2: Convert to fraction form
    98,517.52/135,778.40 = 74,586.88/x
  3. Step 3: Cross multiply
    98,517.52x = 135,778.40 × 74,586.88
  4. Step 4: Simplify right side
    98,517.52x = 10,127,287,227.39
  5. Step 5: Solve for x
    x = 10,127,287,227.39/98,517.52
  6. Step 6: Final answer
    x = 102,796.81

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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.