Home / 111,902.20-167,853.30-107,601.40

Finding the Fourth Proportional to 111,902.20, 167,853.30 and 107,601.40

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Solution

The fourth proportional to 111,902.20, 167,853.30 and 107,601.40 is: 161,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,902.20 : 167,853.30 = 107,601.40 : x
  2. Step 2: Convert to fraction form
    111,902.20/167,853.30 = 107,601.40/x
  3. Step 3: Cross multiply
    111,902.20x = 167,853.30 × 107,601.40
  4. Step 4: Simplify right side
    111,902.20x = 18,061,250,074.62
  5. Step 5: Solve for x
    x = 18,061,250,074.62/111,902.20
  6. Step 6: Final answer
    x = 161,402.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.