Home / 151,805.12-209,550.14-135,861.88

Finding the Fourth Proportional to 151,805.12, 209,550.14 and 135,861.88

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Solution

The fourth proportional to 151,805.12, 209,550.14 and 135,861.88 is: 187,542.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,805.12 : 209,550.14 = 135,861.88 : x
  2. Step 2: Convert to fraction form
    151,805.12/209,550.14 = 135,861.88/x
  3. Step 3: Cross multiply
    151,805.12x = 209,550.14 × 135,861.88
  4. Step 4: Simplify right side
    151,805.12x = 28,469,875,974.66
  5. Step 5: Solve for x
    x = 28,469,875,974.66/151,805.12
  6. Step 6: Final answer
    x = 187,542.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.