Home / 204,029.55-306,144.90-91,789.20

Finding the Fourth Proportional to 204,029.55, 306,144.90 and 91,789.20

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Solution

The fourth proportional to 204,029.55, 306,144.90 and 91,789.20 is: 137,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,029.55 : 306,144.90 = 91,789.20 : x
  2. Step 2: Convert to fraction form
    204,029.55/306,144.90 = 91,789.20/x
  3. Step 3: Cross multiply
    204,029.55x = 306,144.90 × 91,789.20
  4. Step 4: Simplify right side
    204,029.55x = 28,100,795,455.08
  5. Step 5: Solve for x
    x = 28,100,795,455.08/204,029.55
  6. Step 6: Final answer
    x = 137,729.05

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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.