Home / 189,640.26-261,711.54-109,067.87

Finding the Fourth Proportional to 189,640.26, 261,711.54 and 109,067.87

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Solution

The fourth proportional to 189,640.26, 261,711.54 and 109,067.87 is: 150,518.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,640.26 : 261,711.54 = 109,067.87 : x
  2. Step 2: Convert to fraction form
    189,640.26/261,711.54 = 109,067.87/x
  3. Step 3: Cross multiply
    189,640.26x = 261,711.54 × 109,067.87
  4. Step 4: Simplify right side
    189,640.26x = 28,544,320,876.50
  5. Step 5: Solve for x
    x = 28,544,320,876.50/189,640.26
  6. Step 6: Final answer
    x = 150,518.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.