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Finding the Fourth Proportional to 148,707, 205,122.11 and 88,234.74

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Solution

The fourth proportional to 148,707, 205,122.11 and 88,234.74 is: 121,708.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,707 : 205,122.11 = 88,234.74 : x
  2. Step 2: Convert to fraction form
    148,707/205,122.11 = 88,234.74/x
  3. Step 3: Cross multiply
    148,707x = 205,122.11 × 88,234.74
  4. Step 4: Simplify right side
    148,707x = 18,098,895,602.93
  5. Step 5: Solve for x
    x = 18,098,895,602.93/148,707
  6. Step 6: Final answer
    x = 121,708.43

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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.