Home / 215,178.75-322,819.97-67,434.75

Finding the Fourth Proportional to 215,178.75, 322,819.97 and 67,434.75

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Solution

The fourth proportional to 215,178.75, 322,819.97 and 67,434.75 is: 101,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,178.75 : 322,819.97 = 67,434.75 : x
  2. Step 2: Convert to fraction form
    215,178.75/322,819.97 = 67,434.75/x
  3. Step 3: Cross multiply
    215,178.75x = 322,819.97 × 67,434.75
  4. Step 4: Simplify right side
    215,178.75x = 21,769,283,634.78
  5. Step 5: Solve for x
    x = 21,769,283,634.78/215,178.75
  6. Step 6: Final answer
    x = 101,168.37

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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.