Home / 121,190.46-167,245.77-67,479.10

Finding the Fourth Proportional to 121,190.46, 167,245.77 and 67,479.10

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Solution

The fourth proportional to 121,190.46, 167,245.77 and 67,479.10 is: 93,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,190.46 : 167,245.77 = 67,479.10 : x
  2. Step 2: Convert to fraction form
    121,190.46/167,245.77 = 67,479.10/x
  3. Step 3: Cross multiply
    121,190.46x = 167,245.77 × 67,479.10
  4. Step 4: Simplify right side
    121,190.46x = 11,285,593,701.01
  5. Step 5: Solve for x
    x = 11,285,593,701.01/121,190.46
  6. Step 6: Final answer
    x = 93,122.79

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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.