Home / 199,963.26-275,949.45-109,317.78

Finding the Fourth Proportional to 199,963.26, 275,949.45 and 109,317.78

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Solution

The fourth proportional to 199,963.26, 275,949.45 and 109,317.78 is: 150,858.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,963.26 : 275,949.45 = 109,317.78 : x
  2. Step 2: Convert to fraction form
    199,963.26/275,949.45 = 109,317.78/x
  3. Step 3: Cross multiply
    199,963.26x = 275,949.45 × 109,317.78
  4. Step 4: Simplify right side
    199,963.26x = 30,166,181,266.22
  5. Step 5: Solve for x
    x = 30,166,181,266.22/199,963.26
  6. Step 6: Final answer
    x = 150,858.62

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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.