Home / 189,292.89-261,238.19-108,723.81

Finding the Fourth Proportional to 189,292.89, 261,238.19 and 108,723.81

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Solution

The fourth proportional to 189,292.89, 261,238.19 and 108,723.81 is: 150,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,292.89 : 261,238.19 = 108,723.81 : x
  2. Step 2: Convert to fraction form
    189,292.89/261,238.19 = 108,723.81/x
  3. Step 3: Cross multiply
    189,292.89x = 261,238.19 × 108,723.81
  4. Step 4: Simplify right side
    189,292.89x = 28,402,810,790.68
  5. Step 5: Solve for x
    x = 28,402,810,790.68/189,292.89
  6. Step 6: Final answer
    x = 150,046.90

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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.