Home / 120,827.66-166,747.72-67,112.86

Finding the Fourth Proportional to 120,827.66, 166,747.72 and 67,112.86

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Solution

The fourth proportional to 120,827.66, 166,747.72 and 67,112.86 is: 92,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,827.66 : 166,747.72 = 67,112.86 : x
  2. Step 2: Convert to fraction form
    120,827.66/166,747.72 = 67,112.86/x
  3. Step 3: Cross multiply
    120,827.66x = 166,747.72 × 67,112.86
  4. Step 4: Simplify right side
    120,827.66x = 11,190,916,387.68
  5. Step 5: Solve for x
    x = 11,190,916,387.68/120,827.66
  6. Step 6: Final answer
    x = 92,618.83

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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.