Home / 138,938.54-208,425.47-44,134.89

Finding the Fourth Proportional to 138,938.54, 208,425.47 and 44,134.89

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Solution

The fourth proportional to 138,938.54, 208,425.47 and 44,134.89 is: 66,207.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,938.54 : 208,425.47 = 44,134.89 : x
  2. Step 2: Convert to fraction form
    138,938.54/208,425.47 = 44,134.89/x
  3. Step 3: Cross multiply
    138,938.54x = 208,425.47 × 44,134.89
  4. Step 4: Simplify right side
    138,938.54x = 9,198,834,970.97
  5. Step 5: Solve for x
    x = 9,198,834,970.97/138,938.54
  6. Step 6: Final answer
    x = 66,207.95

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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.