Home / 111,115.20-166,556.16-79,933.44

Finding the Fourth Proportional to 111,115.20, 166,556.16 and 79,933.44

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Solution

The fourth proportional to 111,115.20, 166,556.16 and 79,933.44 is: 119,816.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,115.20 : 166,556.16 = 79,933.44 : x
  2. Step 2: Convert to fraction form
    111,115.20/166,556.16 = 79,933.44/x
  3. Step 3: Cross multiply
    111,115.20x = 166,556.16 × 79,933.44
  4. Step 4: Simplify right side
    111,115.20x = 13,313,406,821.99
  5. Step 5: Solve for x
    x = 13,313,406,821.99/111,115.20
  6. Step 6: Final answer
    x = 119,816.25

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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.