Home / 131,667.27-181,650.09-91,360.86

Finding the Fourth Proportional to 131,667.27, 181,650.09 and 91,360.86

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Solution

The fourth proportional to 131,667.27, 181,650.09 and 91,360.86 is: 126,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,667.27 : 181,650.09 = 91,360.86 : x
  2. Step 2: Convert to fraction form
    131,667.27/181,650.09 = 91,360.86/x
  3. Step 3: Cross multiply
    131,667.27x = 181,650.09 × 91,360.86
  4. Step 4: Simplify right side
    131,667.27x = 16,595,708,441.48
  5. Step 5: Solve for x
    x = 16,595,708,441.48/131,667.27
  6. Step 6: Final answer
    x = 126,042.78

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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.