Home / 198,072.72-296,961.32-119,168.46

Finding the Fourth Proportional to 198,072.72, 296,961.32 and 119,168.46

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Solution

The fourth proportional to 198,072.72, 296,961.32 and 119,168.46 is: 178,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,072.72 : 296,961.32 = 119,168.46 : x
  2. Step 2: Convert to fraction form
    198,072.72/296,961.32 = 119,168.46/x
  3. Step 3: Cross multiply
    198,072.72x = 296,961.32 × 119,168.46
  4. Step 4: Simplify right side
    198,072.72x = 35,388,423,183.97
  5. Step 5: Solve for x
    x = 35,388,423,183.97/198,072.72
  6. Step 6: Final answer
    x = 178,663.79

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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.