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Finding the Fourth Proportional to 135,996.73, 187,615.11 and 90,630.52

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Solution

The fourth proportional to 135,996.73, 187,615.11 and 90,630.52 is: 125,029.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,996.73 : 187,615.11 = 90,630.52 : x
  2. Step 2: Convert to fraction form
    135,996.73/187,615.11 = 90,630.52/x
  3. Step 3: Cross multiply
    135,996.73x = 187,615.11 × 90,630.52
  4. Step 4: Simplify right side
    135,996.73x = 17,003,654,979.16
  5. Step 5: Solve for x
    x = 17,003,654,979.16/135,996.73
  6. Step 6: Final answer
    x = 125,029.88

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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.