Home / 79,849.38-119,799.99-68,091.69

Finding the Fourth Proportional to 79,849.38, 119,799.99 and 68,091.69

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Solution

The fourth proportional to 79,849.38, 119,799.99 and 68,091.69 is: 102,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,849.38 : 119,799.99 = 68,091.69 : x
  2. Step 2: Convert to fraction form
    79,849.38/119,799.99 = 68,091.69/x
  3. Step 3: Cross multiply
    79,849.38x = 119,799.99 × 68,091.69
  4. Step 4: Simplify right side
    79,849.38x = 8,157,383,781.08
  5. Step 5: Solve for x
    x = 8,157,383,781.08/79,849.38
  6. Step 6: Final answer
    x = 102,159.64

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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.