Home / 187,971.12-281,758.68-75,731.04

Finding the Fourth Proportional to 187,971.12, 281,758.68 and 75,731.04

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Solution

The fourth proportional to 187,971.12, 281,758.68 and 75,731.04 is: 113,516.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,971.12 : 281,758.68 = 75,731.04 : x
  2. Step 2: Convert to fraction form
    187,971.12/281,758.68 = 75,731.04/x
  3. Step 3: Cross multiply
    187,971.12x = 281,758.68 × 75,731.04
  4. Step 4: Simplify right side
    187,971.12x = 21,337,877,865.43
  5. Step 5: Solve for x
    x = 21,337,877,865.43/187,971.12
  6. Step 6: Final answer
    x = 113,516.79

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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.