Home / 121,255.41-167,337.62-67,540.45

Finding the Fourth Proportional to 121,255.41, 167,337.62 and 67,540.45

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Solution

The fourth proportional to 121,255.41, 167,337.62 and 67,540.45 is: 93,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,255.41 : 167,337.62 = 67,540.45 : x
  2. Step 2: Convert to fraction form
    121,255.41/167,337.62 = 67,540.45/x
  3. Step 3: Cross multiply
    121,255.41x = 167,337.62 × 67,540.45
  4. Step 4: Simplify right side
    121,255.41x = 11,302,057,451.72
  5. Step 5: Solve for x
    x = 11,302,057,451.72/121,255.41
  6. Step 6: Final answer
    x = 93,208.69

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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.