Home / 198,823.50-274,376.43-109,399.50

Finding the Fourth Proportional to 198,823.50, 274,376.43 and 109,399.50

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Solution

The fourth proportional to 198,823.50, 274,376.43 and 109,399.50 is: 150,971.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,823.50 : 274,376.43 = 109,399.50 : x
  2. Step 2: Convert to fraction form
    198,823.50/274,376.43 = 109,399.50/x
  3. Step 3: Cross multiply
    198,823.50x = 274,376.43 × 109,399.50
  4. Step 4: Simplify right side
    198,823.50x = 30,016,644,253.79
  5. Step 5: Solve for x
    x = 30,016,644,253.79/198,823.50
  6. Step 6: Final answer
    x = 150,971.31

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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.