Home / 281,750.14-422,694.38-82,072.40

Finding the Fourth Proportional to 281,750.14, 422,694.38 and 82,072.40

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Solution

The fourth proportional to 281,750.14, 422,694.38 and 82,072.40 is: 123,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,750.14 : 422,694.38 = 82,072.40 : x
  2. Step 2: Convert to fraction form
    281,750.14/422,694.38 = 82,072.40/x
  3. Step 3: Cross multiply
    281,750.14x = 422,694.38 × 82,072.40
  4. Step 4: Simplify right side
    281,750.14x = 34,691,542,233.11
  5. Step 5: Solve for x
    x = 34,691,542,233.11/281,750.14
  6. Step 6: Final answer
    x = 123,128.75

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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.