Home / 135,958.91-203,765.83-76,827.69

Finding the Fourth Proportional to 135,958.91, 203,765.83 and 76,827.69

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Solution

The fourth proportional to 135,958.91, 203,765.83 and 76,827.69 is: 115,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,958.91 : 203,765.83 = 76,827.69 : x
  2. Step 2: Convert to fraction form
    135,958.91/203,765.83 = 76,827.69/x
  3. Step 3: Cross multiply
    135,958.91x = 203,765.83 × 76,827.69
  4. Step 4: Simplify right side
    135,958.91x = 15,654,857,827.76
  5. Step 5: Solve for x
    x = 15,654,857,827.76/135,958.91
  6. Step 6: Final answer
    x = 115,144.04

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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.