Home / 281,869.94-422,759.90-82,143.61

Finding the Fourth Proportional to 281,869.94, 422,759.90 and 82,143.61

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Solution

The fourth proportional to 281,869.94, 422,759.90 and 82,143.61 is: 123,202.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,869.94 : 422,759.90 = 82,143.61 : x
  2. Step 2: Convert to fraction form
    281,869.94/422,759.90 = 82,143.61/x
  3. Step 3: Cross multiply
    281,869.94x = 422,759.90 × 82,143.61
  4. Step 4: Simplify right side
    281,869.94x = 34,727,024,349.24
  5. Step 5: Solve for x
    x = 34,727,024,349.24/281,869.94
  6. Step 6: Final answer
    x = 123,202.30

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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.