Home / 189,279.88-261,205.73-108,712.62

Finding the Fourth Proportional to 189,279.88, 261,205.73 and 108,712.62

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Solution

The fourth proportional to 189,279.88, 261,205.73 and 108,712.62 is: 150,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,279.88 : 261,205.73 = 108,712.62 : x
  2. Step 2: Convert to fraction form
    189,279.88/261,205.73 = 108,712.62/x
  3. Step 3: Cross multiply
    189,279.88x = 261,205.73 × 108,712.62
  4. Step 4: Simplify right side
    189,279.88x = 28,396,359,131.42
  5. Step 5: Solve for x
    x = 28,396,359,131.42/189,279.88
  6. Step 6: Final answer
    x = 150,023.13

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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.