Home / 121,391.22-167,519.99-67,675.16

Finding the Fourth Proportional to 121,391.22, 167,519.99 and 67,675.16

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Solution

The fourth proportional to 121,391.22, 167,519.99 and 67,675.16 is: 93,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,391.22 : 167,519.99 = 67,675.16 : x
  2. Step 2: Convert to fraction form
    121,391.22/167,519.99 = 67,675.16/x
  3. Step 3: Cross multiply
    121,391.22x = 167,519.99 × 67,675.16
  4. Step 4: Simplify right side
    121,391.22x = 11,336,942,126.45
  5. Step 5: Solve for x
    x = 11,336,942,126.45/121,391.22
  6. Step 6: Final answer
    x = 93,391.78

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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.