Home / 281,919.92-422,834.85-82,193.60

Finding the Fourth Proportional to 281,919.92, 422,834.85 and 82,193.60

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Solution

The fourth proportional to 281,919.92, 422,834.85 and 82,193.60 is: 123,277.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,919.92 : 422,834.85 = 82,193.60 : x
  2. Step 2: Convert to fraction form
    281,919.92/422,834.85 = 82,193.60/x
  3. Step 3: Cross multiply
    281,919.92x = 422,834.85 × 82,193.60
  4. Step 4: Simplify right side
    281,919.92x = 34,754,319,584.05
  5. Step 5: Solve for x
    x = 34,754,319,584.05/281,919.92
  6. Step 6: Final answer
    x = 123,277.28

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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.