Home / 189,245.25-283,867.92-76,986.54

Finding the Fourth Proportional to 189,245.25, 283,867.92 and 76,986.54

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Solution

The fourth proportional to 189,245.25, 283,867.92 and 76,986.54 is: 115,479.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,245.25 : 283,867.92 = 76,986.54 : x
  2. Step 2: Convert to fraction form
    189,245.25/283,867.92 = 76,986.54/x
  3. Step 3: Cross multiply
    189,245.25x = 283,867.92 × 76,986.54
  4. Step 4: Simplify right side
    189,245.25x = 21,854,008,977.80
  5. Step 5: Solve for x
    x = 21,854,008,977.80/189,245.25
  6. Step 6: Final answer
    x = 115,479.83

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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.