Home / 135,922.70-203,884.05-123,456.80

Finding the Fourth Proportional to 135,922.70, 203,884.05 and 123,456.80

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Solution

The fourth proportional to 135,922.70, 203,884.05 and 123,456.80 is: 185,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,922.70 : 203,884.05 = 123,456.80 : x
  2. Step 2: Convert to fraction form
    135,922.70/203,884.05 = 123,456.80/x
  3. Step 3: Cross multiply
    135,922.70x = 203,884.05 × 123,456.80
  4. Step 4: Simplify right side
    135,922.70x = 25,170,872,384.04
  5. Step 5: Solve for x
    x = 25,170,872,384.04/135,922.70
  6. Step 6: Final answer
    x = 185,185.20

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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.