Home / 189,198.72-283,693.50-75,231.09

Finding the Fourth Proportional to 189,198.72, 283,693.50 and 75,231.09

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Solution

The fourth proportional to 189,198.72, 283,693.50 and 75,231.09 is: 112,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,198.72 : 283,693.50 = 75,231.09 : x
  2. Step 2: Convert to fraction form
    189,198.72/283,693.50 = 75,231.09/x
  3. Step 3: Cross multiply
    189,198.72x = 283,693.50 × 75,231.09
  4. Step 4: Simplify right side
    189,198.72x = 21,342,571,230.92
  5. Step 5: Solve for x
    x = 21,342,571,230.92/189,198.72
  6. Step 6: Final answer
    x = 112,805.05

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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.