Home / 121,291.57-167,381.26-67,575.61

Finding the Fourth Proportional to 121,291.57, 167,381.26 and 67,575.61

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Solution

The fourth proportional to 121,291.57, 167,381.26 and 67,575.61 is: 93,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,291.57 : 167,381.26 = 67,575.61 : x
  2. Step 2: Convert to fraction form
    121,291.57/167,381.26 = 67,575.61/x
  3. Step 3: Cross multiply
    121,291.57x = 167,381.26 × 67,575.61
  4. Step 4: Simplify right side
    121,291.57x = 11,310,890,747.07
  5. Step 5: Solve for x
    x = 11,310,890,747.07/121,291.57
  6. Step 6: Final answer
    x = 93,253.73

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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.