Home / 135,935.20-203,902.80-123,469.30

Finding the Fourth Proportional to 135,935.20, 203,902.80 and 123,469.30

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Solution

The fourth proportional to 135,935.20, 203,902.80 and 123,469.30 is: 185,203.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,935.20 : 203,902.80 = 123,469.30 : x
  2. Step 2: Convert to fraction form
    135,935.20/203,902.80 = 123,469.30/x
  3. Step 3: Cross multiply
    135,935.20x = 203,902.80 × 123,469.30
  4. Step 4: Simplify right side
    135,935.20x = 25,175,735,984.04
  5. Step 5: Solve for x
    x = 25,175,735,984.04/135,935.20
  6. Step 6: Final answer
    x = 185,203.95

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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.