Home / 198,736.38-274,165.75-118,118.09

Finding the Fourth Proportional to 198,736.38, 274,165.75 and 118,118.09

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Solution

The fourth proportional to 198,736.38, 274,165.75 and 118,118.09 is: 162,949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,736.38 : 274,165.75 = 118,118.09 : x
  2. Step 2: Convert to fraction form
    198,736.38/274,165.75 = 118,118.09/x
  3. Step 3: Cross multiply
    198,736.38x = 274,165.75 × 118,118.09
  4. Step 4: Simplify right side
    198,736.38x = 32,383,934,142.83
  5. Step 5: Solve for x
    x = 32,383,934,142.83/198,736.38
  6. Step 6: Final answer
    x = 162,949.20

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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.