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Finding the Fourth Proportional to 135,212.88, 202,819.67 and 55,250.85

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Solution

The fourth proportional to 135,212.88, 202,819.67 and 55,250.85 is: 82,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,212.88 : 202,819.67 = 55,250.85 : x
  2. Step 2: Convert to fraction form
    135,212.88/202,819.67 = 55,250.85/x
  3. Step 3: Cross multiply
    135,212.88x = 202,819.67 × 55,250.85
  4. Step 4: Simplify right side
    135,212.88x = 11,205,959,164.22
  5. Step 5: Solve for x
    x = 11,205,959,164.22/135,212.88
  6. Step 6: Final answer
    x = 82,876.42

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1.5x scale

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.