Home / 194,034.20-290,468.10-115,107.80

Finding the Fourth Proportional to 194,034.20, 290,468.10 and 115,107.80

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Solution

The fourth proportional to 194,034.20, 290,468.10 and 115,107.80 is: 172,315.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,034.20 : 290,468.10 = 115,107.80 : x
  2. Step 2: Convert to fraction form
    194,034.20/290,468.10 = 115,107.80/x
  3. Step 3: Cross multiply
    194,034.20x = 290,468.10 × 115,107.80
  4. Step 4: Simplify right side
    194,034.20x = 33,435,143,961.18
  5. Step 5: Solve for x
    x = 33,435,143,961.18/194,034.20
  6. Step 6: Final answer
    x = 172,315.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.