Home / 198,643.49-274,133.39-108,005.54

Finding the Fourth Proportional to 198,643.49, 274,133.39 and 108,005.54

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Solution

The fourth proportional to 198,643.49, 274,133.39 and 108,005.54 is: 149,050.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,643.49 : 274,133.39 = 108,005.54 : x
  2. Step 2: Convert to fraction form
    198,643.49/274,133.39 = 108,005.54/x
  3. Step 3: Cross multiply
    198,643.49x = 274,133.39 × 108,005.54
  4. Step 4: Simplify right side
    198,643.49x = 29,607,922,908.29
  5. Step 5: Solve for x
    x = 29,607,922,908.29/198,643.49
  6. Step 6: Final answer
    x = 149,050.56

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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.