Home / 198,979.98-274,590.72-108,335.77

Finding the Fourth Proportional to 198,979.98, 274,590.72 and 108,335.77

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Solution

The fourth proportional to 198,979.98, 274,590.72 and 108,335.77 is: 149,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,979.98 : 274,590.72 = 108,335.77 : x
  2. Step 2: Convert to fraction form
    198,979.98/274,590.72 = 108,335.77/x
  3. Step 3: Cross multiply
    198,979.98x = 274,590.72 × 108,335.77
  4. Step 4: Simplify right side
    198,979.98x = 29,747,997,086.05
  5. Step 5: Solve for x
    x = 29,747,997,086.05/198,979.98
  6. Step 6: Final answer
    x = 149,502.46

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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.