Home / 198,986.42-274,592.07-108,342.11

Finding the Fourth Proportional to 198,986.42, 274,592.07 and 108,342.11

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Solution

The fourth proportional to 198,986.42, 274,592.07 and 108,342.11 is: 149,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,986.42 : 274,592.07 = 108,342.11 : x
  2. Step 2: Convert to fraction form
    198,986.42/274,592.07 = 108,342.11/x
  3. Step 3: Cross multiply
    198,986.42x = 274,592.07 × 108,342.11
  4. Step 4: Simplify right side
    198,986.42x = 29,749,882,880.11
  5. Step 5: Solve for x
    x = 29,749,882,880.11/198,986.42
  6. Step 6: Final answer
    x = 149,507.11

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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.