Home / 138,100.73-207,155.55-38,261.89

Finding the Fourth Proportional to 138,100.73, 207,155.55 and 38,261.89

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Solution

The fourth proportional to 138,100.73, 207,155.55 and 38,261.89 is: 57,394.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,100.73 : 207,155.55 = 38,261.89 : x
  2. Step 2: Convert to fraction form
    138,100.73/207,155.55 = 38,261.89/x
  3. Step 3: Cross multiply
    138,100.73x = 207,155.55 × 38,261.89
  4. Step 4: Simplify right side
    138,100.73x = 7,926,161,831.21
  5. Step 5: Solve for x
    x = 7,926,161,831.21/138,100.73
  6. Step 6: Final answer
    x = 57,394.06

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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.