Home / 135,917.56-203,949.66-79,867.18

Finding the Fourth Proportional to 135,917.56, 203,949.66 and 79,867.18

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Solution

The fourth proportional to 135,917.56, 203,949.66 and 79,867.18 is: 119,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,917.56 : 203,949.66 = 79,867.18 : x
  2. Step 2: Convert to fraction form
    135,917.56/203,949.66 = 79,867.18/x
  3. Step 3: Cross multiply
    135,917.56x = 203,949.66 × 79,867.18
  4. Step 4: Simplify right side
    135,917.56x = 16,288,884,206.16
  5. Step 5: Solve for x
    x = 16,288,884,206.16/135,917.56
  6. Step 6: Final answer
    x = 119,843.85

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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.