Home / 135,974.80-203,962.36-42,481.04

Finding the Fourth Proportional to 135,974.80, 203,962.36 and 42,481.04

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Solution

The fourth proportional to 135,974.80, 203,962.36 and 42,481.04 is: 63,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,974.80 : 203,962.36 = 42,481.04 : x
  2. Step 2: Convert to fraction form
    135,974.80/203,962.36 = 42,481.04/x
  3. Step 3: Cross multiply
    135,974.80x = 203,962.36 × 42,481.04
  4. Step 4: Simplify right side
    135,974.80x = 8,664,533,173.65
  5. Step 5: Solve for x
    x = 8,664,533,173.65/135,974.80
  6. Step 6: Final answer
    x = 63,721.61

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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.