Home / 192,869.67-266,158.38-107,988.15

Finding the Fourth Proportional to 192,869.67, 266,158.38 and 107,988.15

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Solution

The fourth proportional to 192,869.67, 266,158.38 and 107,988.15 is: 149,022.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,869.67 : 266,158.38 = 107,988.15 : x
  2. Step 2: Convert to fraction form
    192,869.67/266,158.38 = 107,988.15/x
  3. Step 3: Cross multiply
    192,869.67x = 266,158.38 × 107,988.15
  4. Step 4: Simplify right side
    192,869.67x = 28,741,951,063.20
  5. Step 5: Solve for x
    x = 28,741,951,063.20/192,869.67
  6. Step 6: Final answer
    x = 149,022.66

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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.