Home / 198,665.75-274,158.78-109,241.75

Finding the Fourth Proportional to 198,665.75, 274,158.78 and 109,241.75

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Solution

The fourth proportional to 198,665.75, 274,158.78 and 109,241.75 is: 150,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,665.75 : 274,158.78 = 109,241.75 : x
  2. Step 2: Convert to fraction form
    198,665.75/274,158.78 = 109,241.75/x
  3. Step 3: Cross multiply
    198,665.75x = 274,158.78 × 109,241.75
  4. Step 4: Simplify right side
    198,665.75x = 29,949,584,905.07
  5. Step 5: Solve for x
    x = 29,949,584,905.07/198,665.75
  6. Step 6: Final answer
    x = 150,753.64

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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.