Home / 189,243.38-283,858.86-76,890.26

Finding the Fourth Proportional to 189,243.38, 283,858.86 and 76,890.26

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Solution

The fourth proportional to 189,243.38, 283,858.86 and 76,890.26 is: 115,332.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,243.38 : 283,858.86 = 76,890.26 : x
  2. Step 2: Convert to fraction form
    189,243.38/283,858.86 = 76,890.26/x
  3. Step 3: Cross multiply
    189,243.38x = 283,858.86 × 76,890.26
  4. Step 4: Simplify right side
    189,243.38x = 21,825,981,548.70
  5. Step 5: Solve for x
    x = 21,825,981,548.70/189,243.38
  6. Step 6: Final answer
    x = 115,332.87

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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.