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Finding the Fourth Proportional to 138,522.73, 207,795.88 and 43,727.55

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Solution

The fourth proportional to 138,522.73, 207,795.88 and 43,727.55 is: 65,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,522.73 : 207,795.88 = 43,727.55 : x
  2. Step 2: Convert to fraction form
    138,522.73/207,795.88 = 43,727.55/x
  3. Step 3: Cross multiply
    138,522.73x = 207,795.88 × 43,727.55
  4. Step 4: Simplify right side
    138,522.73x = 9,086,404,623.18
  5. Step 5: Solve for x
    x = 9,086,404,623.18/138,522.73
  6. Step 6: Final answer
    x = 65,595.05

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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.