Home / 198,036-273,306.96-108,629.28

Finding the Fourth Proportional to 198,036, 273,306.96 and 108,629.28

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Solution

The fourth proportional to 198,036, 273,306.96 and 108,629.28 is: 149,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,036 : 273,306.96 = 108,629.28 : x
  2. Step 2: Convert to fraction form
    198,036/273,306.96 = 108,629.28/x
  3. Step 3: Cross multiply
    198,036x = 273,306.96 × 108,629.28
  4. Step 4: Simplify right side
    198,036x = 29,689,138,283.79
  5. Step 5: Solve for x
    x = 29,689,138,283.79/198,036
  6. Step 6: Final answer
    x = 149,917.89

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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.