Home / 198,639.25-274,127.58-108,001.33

Finding the Fourth Proportional to 198,639.25, 274,127.58 and 108,001.33

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Solution

The fourth proportional to 198,639.25, 274,127.58 and 108,001.33 is: 149,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,639.25 : 274,127.58 = 108,001.33 : x
  2. Step 2: Convert to fraction form
    198,639.25/274,127.58 = 108,001.33/x
  3. Step 3: Cross multiply
    198,639.25x = 274,127.58 × 108,001.33
  4. Step 4: Simplify right side
    198,639.25x = 29,606,142,544.36
  5. Step 5: Solve for x
    x = 29,606,142,544.36/198,639.25
  6. Step 6: Final answer
    x = 149,044.78

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1.5x scale

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.