Home / 281,759.90-422,709.05-82,082.04

Finding the Fourth Proportional to 281,759.90, 422,709.05 and 82,082.04

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Solution

The fourth proportional to 281,759.90, 422,709.05 and 82,082.04 is: 123,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,759.90 : 422,709.05 = 82,082.04 : x
  2. Step 2: Convert to fraction form
    281,759.90/422,709.05 = 82,082.04/x
  3. Step 3: Cross multiply
    281,759.90x = 422,709.05 × 82,082.04
  4. Step 4: Simplify right side
    281,759.90x = 34,696,820,740.05
  5. Step 5: Solve for x
    x = 34,696,820,740.05/281,759.90
  6. Step 6: Final answer
    x = 123,143.22

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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.