Home / 214,179.38-321,266.75-87,791.45

Finding the Fourth Proportional to 214,179.38, 321,266.75 and 87,791.45

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Solution

The fourth proportional to 214,179.38, 321,266.75 and 87,791.45 is: 131,686.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,179.38 : 321,266.75 = 87,791.45 : x
  2. Step 2: Convert to fraction form
    214,179.38/321,266.75 = 87,791.45/x
  3. Step 3: Cross multiply
    214,179.38x = 321,266.75 × 87,791.45
  4. Step 4: Simplify right side
    214,179.38x = 28,204,473,801.79
  5. Step 5: Solve for x
    x = 28,204,473,801.79/214,179.38
  6. Step 6: Final answer
    x = 131,686.23

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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.