Home / 198,743.64-274,268.21-108,101.72

Finding the Fourth Proportional to 198,743.64, 274,268.21 and 108,101.72

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Solution

The fourth proportional to 198,743.64, 274,268.21 and 108,101.72 is: 149,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,743.64 : 274,268.21 = 108,101.72 : x
  2. Step 2: Convert to fraction form
    198,743.64/274,268.21 = 108,101.72/x
  3. Step 3: Cross multiply
    198,743.64x = 274,268.21 × 108,101.72
  4. Step 4: Simplify right side
    198,743.64x = 29,648,863,330.47
  5. Step 5: Solve for x
    x = 29,648,863,330.47/198,743.64
  6. Step 6: Final answer
    x = 149,181.44

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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.