Home / 135,986.34-203,753.70-83,285.04

Finding the Fourth Proportional to 135,986.34, 203,753.70 and 83,285.04

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Solution

The fourth proportional to 135,986.34, 203,753.70 and 83,285.04 is: 124,789.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,986.34 : 203,753.70 = 83,285.04 : x
  2. Step 2: Convert to fraction form
    135,986.34/203,753.70 = 83,285.04/x
  3. Step 3: Cross multiply
    135,986.34x = 203,753.70 × 83,285.04
  4. Step 4: Simplify right side
    135,986.34x = 16,969,635,054.65
  5. Step 5: Solve for x
    x = 16,969,635,054.65/135,986.34
  6. Step 6: Final answer
    x = 124,789.26

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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.