Home / 198,848.96-274,403.20-108,205.28

Finding the Fourth Proportional to 198,848.96, 274,403.20 and 108,205.28

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Solution

The fourth proportional to 198,848.96, 274,403.20 and 108,205.28 is: 149,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,848.96 : 274,403.20 = 108,205.28 : x
  2. Step 2: Convert to fraction form
    198,848.96/274,403.20 = 108,205.28/x
  3. Step 3: Cross multiply
    198,848.96x = 274,403.20 × 108,205.28
  4. Step 4: Simplify right side
    198,848.96x = 29,691,875,088.90
  5. Step 5: Solve for x
    x = 29,691,875,088.90/198,848.96
  6. Step 6: Final answer
    x = 149,318.73

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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.