Home / 138,774.33-207,943.47-107,261.55

Finding the Fourth Proportional to 138,774.33, 207,943.47 and 107,261.55

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Solution

The fourth proportional to 138,774.33, 207,943.47 and 107,261.55 is: 160,723.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,774.33 : 207,943.47 = 107,261.55 : x
  2. Step 2: Convert to fraction form
    138,774.33/207,943.47 = 107,261.55/x
  3. Step 3: Cross multiply
    138,774.33x = 207,943.47 × 107,261.55
  4. Step 4: Simplify right side
    138,774.33x = 22,304,338,904.58
  5. Step 5: Solve for x
    x = 22,304,338,904.58/138,774.33
  6. Step 6: Final answer
    x = 160,723.81

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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.