Home / 135,285.96-203,000.92-76,125.78

Finding the Fourth Proportional to 135,285.96, 203,000.92 and 76,125.78

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Solution

The fourth proportional to 135,285.96, 203,000.92 and 76,125.78 is: 114,229.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,285.96 : 203,000.92 = 76,125.78 : x
  2. Step 2: Convert to fraction form
    135,285.96/203,000.92 = 76,125.78/x
  3. Step 3: Cross multiply
    135,285.96x = 203,000.92 × 76,125.78
  4. Step 4: Simplify right side
    135,285.96x = 15,453,603,375.72
  5. Step 5: Solve for x
    x = 15,453,603,375.72/135,285.96
  6. Step 6: Final answer
    x = 114,229.17

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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.