Home / 121,173.06-167,198.87-67,456.70

Finding the Fourth Proportional to 121,173.06, 167,198.87 and 67,456.70

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Solution

The fourth proportional to 121,173.06, 167,198.87 and 67,456.70 is: 93,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,173.06 : 167,198.87 = 67,456.70 : x
  2. Step 2: Convert to fraction form
    121,173.06/167,198.87 = 67,456.70/x
  3. Step 3: Cross multiply
    121,173.06x = 167,198.87 × 67,456.70
  4. Step 4: Simplify right side
    121,173.06x = 11,278,682,840.65
  5. Step 5: Solve for x
    x = 11,278,682,840.65/121,173.06
  6. Step 6: Final answer
    x = 93,079.13

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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.