Home / 107,878.20-148,865.78-60,129.92

Finding the Fourth Proportional to 107,878.20, 148,865.78 and 60,129.92

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Solution

The fourth proportional to 107,878.20, 148,865.78 and 60,129.92 is: 82,975.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,878.20 : 148,865.78 = 60,129.92 : x
  2. Step 2: Convert to fraction form
    107,878.20/148,865.78 = 60,129.92/x
  3. Step 3: Cross multiply
    107,878.20x = 148,865.78 × 60,129.92
  4. Step 4: Simplify right side
    107,878.20x = 8,951,287,442.14
  5. Step 5: Solve for x
    x = 8,951,287,442.14/107,878.20
  6. Step 6: Final answer
    x = 82,975.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.