Home / 79,198.43-118,514.66-68,791.05

Finding the Fourth Proportional to 79,198.43, 118,514.66 and 68,791.05

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Solution

The fourth proportional to 79,198.43, 118,514.66 and 68,791.05 is: 102,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,198.43 : 118,514.66 = 68,791.05 : x
  2. Step 2: Convert to fraction form
    79,198.43/118,514.66 = 68,791.05/x
  3. Step 3: Cross multiply
    79,198.43x = 118,514.66 × 68,791.05
  4. Step 4: Simplify right side
    79,198.43x = 8,152,747,557.84
  5. Step 5: Solve for x
    x = 8,152,747,557.84/79,198.43
  6. Step 6: Final answer
    x = 102,940.78

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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.