Home / 138,860.73-208,248.17-50,102.96

Finding the Fourth Proportional to 138,860.73, 208,248.17 and 50,102.96

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Solution

The fourth proportional to 138,860.73, 208,248.17 and 50,102.96 is: 75,138.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,860.73 : 208,248.17 = 50,102.96 : x
  2. Step 2: Convert to fraction form
    138,860.73/208,248.17 = 50,102.96/x
  3. Step 3: Cross multiply
    138,860.73x = 208,248.17 × 50,102.96
  4. Step 4: Simplify right side
    138,860.73x = 10,433,848,439.83
  5. Step 5: Solve for x
    x = 10,433,848,439.83/138,860.73
  6. Step 6: Final answer
    x = 75,138.94

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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.