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Finding the Fourth Proportional to 137,234.60, 205,851.90 and 38,738.60

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Solution

The fourth proportional to 137,234.60, 205,851.90 and 38,738.60 is: 58,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,234.60 : 205,851.90 = 38,738.60 : x
  2. Step 2: Convert to fraction form
    137,234.60/205,851.90 = 38,738.60/x
  3. Step 3: Cross multiply
    137,234.60x = 205,851.90 × 38,738.60
  4. Step 4: Simplify right side
    137,234.60x = 7,974,414,413.34
  5. Step 5: Solve for x
    x = 7,974,414,413.34/137,234.60
  6. Step 6: Final answer
    x = 58,107.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.