Home / 121,257.19-167,340-67,542.13

Finding the Fourth Proportional to 121,257.19, 167,340 and 67,542.13

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Solution

The fourth proportional to 121,257.19, 167,340 and 67,542.13 is: 93,210.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,257.19 : 167,340 = 67,542.13 : x
  2. Step 2: Convert to fraction form
    121,257.19/167,340 = 67,542.13/x
  3. Step 3: Cross multiply
    121,257.19x = 167,340 × 67,542.13
  4. Step 4: Simplify right side
    121,257.19x = 11,302,500,034.20
  5. Step 5: Solve for x
    x = 11,302,500,034.20/121,257.19
  6. Step 6: Final answer
    x = 93,210.97

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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.