Home / 276,945.11-415,251.57-126,997.56

Finding the Fourth Proportional to 276,945.11, 415,251.57 and 126,997.56

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Solution

The fourth proportional to 276,945.11, 415,251.57 and 126,997.56 is: 190,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,945.11 : 415,251.57 = 126,997.56 : x
  2. Step 2: Convert to fraction form
    276,945.11/415,251.57 = 126,997.56/x
  3. Step 3: Cross multiply
    276,945.11x = 415,251.57 × 126,997.56
  4. Step 4: Simplify right side
    276,945.11x = 52,735,936,176.17
  5. Step 5: Solve for x
    x = 52,735,936,176.17/276,945.11
  6. Step 6: Final answer
    x = 190,420.17

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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.