Home / 198,987.58-274,609.60-108,347.06

Finding the Fourth Proportional to 198,987.58, 274,609.60 and 108,347.06

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Solution

The fourth proportional to 198,987.58, 274,609.60 and 108,347.06 is: 149,522.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,987.58 : 274,609.60 = 108,347.06 : x
  2. Step 2: Convert to fraction form
    198,987.58/274,609.60 = 108,347.06/x
  3. Step 3: Cross multiply
    198,987.58x = 274,609.60 × 108,347.06
  4. Step 4: Simplify right side
    198,987.58x = 29,753,142,807.78
  5. Step 5: Solve for x
    x = 29,753,142,807.78/198,987.58
  6. Step 6: Final answer
    x = 149,522.61

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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.