Home / 198,579.52-274,039.72-109,155.52

Finding the Fourth Proportional to 198,579.52, 274,039.72 and 109,155.52

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Solution

The fourth proportional to 198,579.52, 274,039.72 and 109,155.52 is: 150,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,579.52 : 274,039.72 = 109,155.52 : x
  2. Step 2: Convert to fraction form
    198,579.52/274,039.72 = 109,155.52/x
  3. Step 3: Cross multiply
    198,579.52x = 274,039.72 × 109,155.52
  4. Step 4: Simplify right side
    198,579.52x = 29,912,948,137.25
  5. Step 5: Solve for x
    x = 29,912,948,137.25/198,579.52
  6. Step 6: Final answer
    x = 150,634.61

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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.