Home / 198,949.79-274,554.21-108,308.36

Finding the Fourth Proportional to 198,949.79, 274,554.21 and 108,308.36

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Solution

The fourth proportional to 198,949.79, 274,554.21 and 108,308.36 is: 149,467.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,949.79 : 274,554.21 = 108,308.36 : x
  2. Step 2: Convert to fraction form
    198,949.79/274,554.21 = 108,308.36/x
  3. Step 3: Cross multiply
    198,949.79x = 274,554.21 × 108,308.36
  4. Step 4: Simplify right side
    198,949.79x = 29,736,514,843.42
  5. Step 5: Solve for x
    x = 29,736,514,843.42/198,949.79
  6. Step 6: Final answer
    x = 149,467.44

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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.