Home / 100,442.92-138,601.13-60,155.65

Finding the Fourth Proportional to 100,442.92, 138,601.13 and 60,155.65

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Solution

The fourth proportional to 100,442.92, 138,601.13 and 60,155.65 is: 83,008.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,442.92 : 138,601.13 = 60,155.65 : x
  2. Step 2: Convert to fraction form
    100,442.92/138,601.13 = 60,155.65/x
  3. Step 3: Cross multiply
    100,442.92x = 138,601.13 × 60,155.65
  4. Step 4: Simplify right side
    100,442.92x = 8,337,640,372.88
  5. Step 5: Solve for x
    x = 8,337,640,372.88/100,442.92
  6. Step 6: Final answer
    x = 83,008.75

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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.