Home / 111,016.72-166,519.96-40,891.28

Finding the Fourth Proportional to 111,016.72, 166,519.96 and 40,891.28

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Solution

The fourth proportional to 111,016.72, 166,519.96 and 40,891.28 is: 61,335.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,016.72 : 166,519.96 = 40,891.28 : x
  2. Step 2: Convert to fraction form
    111,016.72/166,519.96 = 40,891.28/x
  3. Step 3: Cross multiply
    111,016.72x = 166,519.96 × 40,891.28
  4. Step 4: Simplify right side
    111,016.72x = 6,809,214,309.95
  5. Step 5: Solve for x
    x = 6,809,214,309.95/111,016.72
  6. Step 6: Final answer
    x = 61,335.03

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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.