Home / 121,190.42-167,242.40-67,474.04

Finding the Fourth Proportional to 121,190.42, 167,242.40 and 67,474.04

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Solution

The fourth proportional to 121,190.42, 167,242.40 and 67,474.04 is: 93,113.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,190.42 : 167,242.40 = 67,474.04 : x
  2. Step 2: Convert to fraction form
    121,190.42/167,242.40 = 67,474.04/x
  3. Step 3: Cross multiply
    121,190.42x = 167,242.40 × 67,474.04
  4. Step 4: Simplify right side
    121,190.42x = 11,284,520,387.30
  5. Step 5: Solve for x
    x = 11,284,520,387.30/121,190.42
  6. Step 6: Final answer
    x = 93,113.96

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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.