Home / 111,964.62-154,331.09-75,654.73

Finding the Fourth Proportional to 111,964.62, 154,331.09 and 75,654.73

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Solution

The fourth proportional to 111,964.62, 154,331.09 and 75,654.73 is: 104,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,964.62 : 154,331.09 = 75,654.73 : x
  2. Step 2: Convert to fraction form
    111,964.62/154,331.09 = 75,654.73/x
  3. Step 3: Cross multiply
    111,964.62x = 154,331.09 × 75,654.73
  4. Step 4: Simplify right side
    111,964.62x = 11,675,876,172.90
  5. Step 5: Solve for x
    x = 11,675,876,172.90/111,964.62
  6. Step 6: Final answer
    x = 104,281.84

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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.