Home / 198,961.68-274,567.83-108,318.72

Finding the Fourth Proportional to 198,961.68, 274,567.83 and 108,318.72

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Solution

The fourth proportional to 198,961.68, 274,567.83 and 108,318.72 is: 149,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,961.68 : 274,567.83 = 108,318.72 : x
  2. Step 2: Convert to fraction form
    198,961.68/274,567.83 = 108,318.72/x
  3. Step 3: Cross multiply
    198,961.68x = 274,567.83 × 108,318.72
  4. Step 4: Simplify right side
    198,961.68x = 29,740,835,898.78
  5. Step 5: Solve for x
    x = 29,740,835,898.78/198,961.68
  6. Step 6: Final answer
    x = 149,480.22

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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.