Home / 198,801.81-274,343.58-108,158.58

Finding the Fourth Proportional to 198,801.81, 274,343.58 and 108,158.58

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Solution

The fourth proportional to 198,801.81, 274,343.58 and 108,158.58 is: 149,257.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,801.81 : 274,343.58 = 108,158.58 : x
  2. Step 2: Convert to fraction form
    198,801.81/274,343.58 = 108,158.58/x
  3. Step 3: Cross multiply
    198,801.81x = 274,343.58 × 108,158.58
  4. Step 4: Simplify right side
    198,801.81x = 29,672,612,044.92
  5. Step 5: Solve for x
    x = 29,672,612,044.92/198,801.81
  6. Step 6: Final answer
    x = 149,257.25

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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.