Home / 199,934.20-275,915.82-109,288.36

Finding the Fourth Proportional to 199,934.20, 275,915.82 and 109,288.36

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Solution

The fourth proportional to 199,934.20, 275,915.82 and 109,288.36 is: 150,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,934.20 : 275,915.82 = 109,288.36 : x
  2. Step 2: Convert to fraction form
    199,934.20/275,915.82 = 109,288.36/x
  3. Step 3: Cross multiply
    199,934.20x = 275,915.82 × 109,288.36
  4. Step 4: Simplify right side
    199,934.20x = 30,154,387,465.86
  5. Step 5: Solve for x
    x = 30,154,387,465.86/199,934.20
  6. Step 6: Final answer
    x = 150,821.56

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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.