Home / 121,168.07-167,208.19-67,451.90

Finding the Fourth Proportional to 121,168.07, 167,208.19 and 67,451.90

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Solution

The fourth proportional to 121,168.07, 167,208.19 and 67,451.90 is: 93,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,168.07 : 167,208.19 = 67,451.90 : x
  2. Step 2: Convert to fraction form
    121,168.07/167,208.19 = 67,451.90/x
  3. Step 3: Cross multiply
    121,168.07x = 167,208.19 × 67,451.90
  4. Step 4: Simplify right side
    121,168.07x = 11,278,510,111.06
  5. Step 5: Solve for x
    x = 11,278,510,111.06/121,168.07
  6. Step 6: Final answer
    x = 93,081.54

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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.