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Finding the Fourth Proportional to 149,234.50, 205,938.86 and 88,791.29

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Solution

The fourth proportional to 149,234.50, 205,938.86 and 88,791.29 is: 122,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,234.50 : 205,938.86 = 88,791.29 : x
  2. Step 2: Convert to fraction form
    149,234.50/205,938.86 = 88,791.29/x
  3. Step 3: Cross multiply
    149,234.50x = 205,938.86 × 88,791.29
  4. Step 4: Simplify right side
    149,234.50x = 18,285,576,339.15
  5. Step 5: Solve for x
    x = 18,285,576,339.15/149,234.50
  6. Step 6: Final answer
    x = 122,529.15

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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.