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Finding the Fourth Proportional to 137,286.72, 205,974.24 and 62,433.60

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Solution

The fourth proportional to 137,286.72, 205,974.24 and 62,433.60 is: 93,670.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,286.72 : 205,974.24 = 62,433.60 : x
  2. Step 2: Convert to fraction form
    137,286.72/205,974.24 = 62,433.60/x
  3. Step 3: Cross multiply
    137,286.72x = 205,974.24 × 62,433.60
  4. Step 4: Simplify right side
    137,286.72x = 12,859,713,310.46
  5. Step 5: Solve for x
    x = 12,859,713,310.46/137,286.72
  6. Step 6: Final answer
    x = 93,670.48

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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.