Home / 135,481.83-203,251.28-51,240.11

Finding the Fourth Proportional to 135,481.83, 203,251.28 and 51,240.11

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Solution

The fourth proportional to 135,481.83, 203,251.28 and 51,240.11 is: 76,870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,481.83 : 203,251.28 = 51,240.11 : x
  2. Step 2: Convert to fraction form
    135,481.83/203,251.28 = 51,240.11/x
  3. Step 3: Cross multiply
    135,481.83x = 203,251.28 × 51,240.11
  4. Step 4: Simplify right side
    135,481.83x = 10,414,618,196.77
  5. Step 5: Solve for x
    x = 10,414,618,196.77/135,481.83
  6. Step 6: Final answer
    x = 76,870.96

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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.