Home / 136,769.38-188,773.23-80,198.98

Finding the Fourth Proportional to 136,769.38, 188,773.23 and 80,198.98

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Solution

The fourth proportional to 136,769.38, 188,773.23 and 80,198.98 is: 110,693.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,769.38 : 188,773.23 = 80,198.98 : x
  2. Step 2: Convert to fraction form
    136,769.38/188,773.23 = 80,198.98/x
  3. Step 3: Cross multiply
    136,769.38x = 188,773.23 × 80,198.98
  4. Step 4: Simplify right side
    136,769.38x = 15,139,420,326.12
  5. Step 5: Solve for x
    x = 15,139,420,326.12/136,769.38
  6. Step 6: Final answer
    x = 110,693.06

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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.