Home / 138,236.54-207,404.78-48,292.58

Finding the Fourth Proportional to 138,236.54, 207,404.78 and 48,292.58

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Solution

The fourth proportional to 138,236.54, 207,404.78 and 48,292.58 is: 72,456.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,236.54 : 207,404.78 = 48,292.58 : x
  2. Step 2: Convert to fraction form
    138,236.54/207,404.78 = 48,292.58/x
  3. Step 3: Cross multiply
    138,236.54x = 207,404.78 × 48,292.58
  4. Step 4: Simplify right side
    138,236.54x = 10,016,111,930.53
  5. Step 5: Solve for x
    x = 10,016,111,930.53/138,236.54
  6. Step 6: Final answer
    x = 72,456.33

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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.