Home / 274,748.20-412,181.49-85,204.78

Finding the Fourth Proportional to 274,748.20, 412,181.49 and 85,204.78

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Solution

The fourth proportional to 274,748.20, 412,181.49 and 85,204.78 is: 127,825.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,748.20 : 412,181.49 = 85,204.78 : x
  2. Step 2: Convert to fraction form
    274,748.20/412,181.49 = 85,204.78/x
  3. Step 3: Cross multiply
    274,748.20x = 412,181.49 × 85,204.78
  4. Step 4: Simplify right side
    274,748.20x = 35,119,833,175.52
  5. Step 5: Solve for x
    x = 35,119,833,175.52/274,748.20
  6. Step 6: Final answer
    x = 127,825.53

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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.