Home / 115,155.92-158,982.60-75,481.04

Finding the Fourth Proportional to 115,155.92, 158,982.60 and 75,481.04

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Solution

The fourth proportional to 115,155.92, 158,982.60 and 75,481.04 is: 104,208.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,155.92 : 158,982.60 = 75,481.04 : x
  2. Step 2: Convert to fraction form
    115,155.92/158,982.60 = 75,481.04/x
  3. Step 3: Cross multiply
    115,155.92x = 158,982.60 × 75,481.04
  4. Step 4: Simplify right side
    115,155.92x = 12,000,171,989.90
  5. Step 5: Solve for x
    x = 12,000,171,989.90/115,155.92
  6. Step 6: Final answer
    x = 104,208.03

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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.