Home / 198,637.25-274,119.41-109,213.25

Finding the Fourth Proportional to 198,637.25, 274,119.41 and 109,213.25

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Solution

The fourth proportional to 198,637.25, 274,119.41 and 109,213.25 is: 150,714.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,637.25 : 274,119.41 = 109,213.25 : x
  2. Step 2: Convert to fraction form
    198,637.25/274,119.41 = 109,213.25/x
  3. Step 3: Cross multiply
    198,637.25x = 274,119.41 × 109,213.25
  4. Step 4: Simplify right side
    198,637.25x = 29,937,471,654.18
  5. Step 5: Solve for x
    x = 29,937,471,654.18/198,637.25
  6. Step 6: Final answer
    x = 150,714.29

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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.