Home / 189,806.08-261,958.40-109,231.92

Finding the Fourth Proportional to 189,806.08, 261,958.40 and 109,231.92

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Solution

The fourth proportional to 189,806.08, 261,958.40 and 109,231.92 is: 150,755.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,806.08 : 261,958.40 = 109,231.92 : x
  2. Step 2: Convert to fraction form
    189,806.08/261,958.40 = 109,231.92/x
  3. Step 3: Cross multiply
    189,806.08x = 261,958.40 × 109,231.92
  4. Step 4: Simplify right side
    189,806.08x = 28,614,218,992.13
  5. Step 5: Solve for x
    x = 28,614,218,992.13/189,806.08
  6. Step 6: Final answer
    x = 150,755.02

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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.