Home / 199,121.30-274,787.38-109,697.30

Finding the Fourth Proportional to 199,121.30, 274,787.38 and 109,697.30

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Solution

The fourth proportional to 199,121.30, 274,787.38 and 109,697.30 is: 151,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,121.30 : 274,787.38 = 109,697.30 : x
  2. Step 2: Convert to fraction form
    199,121.30/274,787.38 = 109,697.30/x
  3. Step 3: Cross multiply
    199,121.30x = 274,787.38 × 109,697.30
  4. Step 4: Simplify right side
    199,121.30x = 30,143,433,660.07
  5. Step 5: Solve for x
    x = 30,143,433,660.07/199,121.30
  6. Step 6: Final answer
    x = 151,382.27

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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.