Home / 135,921.20-203,910.98-52,815.20

Finding the Fourth Proportional to 135,921.20, 203,910.98 and 52,815.20

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Solution

The fourth proportional to 135,921.20, 203,910.98 and 52,815.20 is: 79,234.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,921.20 : 203,910.98 = 52,815.20 : x
  2. Step 2: Convert to fraction form
    135,921.20/203,910.98 = 52,815.20/x
  3. Step 3: Cross multiply
    135,921.20x = 203,910.98 × 52,815.20
  4. Step 4: Simplify right side
    135,921.20x = 10,769,597,907.27
  5. Step 5: Solve for x
    x = 10,769,597,907.27/135,921.20
  6. Step 6: Final answer
    x = 79,234.13

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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.