Home / 189,434.30-261,418.79-104,550.75

Finding the Fourth Proportional to 189,434.30, 261,418.79 and 104,550.75

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Solution

The fourth proportional to 189,434.30, 261,418.79 and 104,550.75 is: 144,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,434.30 : 261,418.79 = 104,550.75 : x
  2. Step 2: Convert to fraction form
    189,434.30/261,418.79 = 104,550.75/x
  3. Step 3: Cross multiply
    189,434.30x = 261,418.79 × 104,550.75
  4. Step 4: Simplify right side
    189,434.30x = 27,331,530,819.97
  5. Step 5: Solve for x
    x = 27,331,530,819.97/189,434.30
  6. Step 6: Final answer
    x = 144,279.74

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1.5x scale

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.