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Finding the Fourth Proportional to 89,301.90, 133,163.84 and 88,500.54

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Solution

The fourth proportional to 89,301.90, 133,163.84 and 88,500.54 is: 131,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,301.90 : 133,163.84 = 88,500.54 : x
  2. Step 2: Convert to fraction form
    89,301.90/133,163.84 = 88,500.54/x
  3. Step 3: Cross multiply
    89,301.90x = 133,163.84 × 88,500.54
  4. Step 4: Simplify right side
    89,301.90x = 11,785,071,305.97
  5. Step 5: Solve for x
    x = 11,785,071,305.97/89,301.90
  6. Step 6: Final answer
    x = 131,968.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.