Home / 111,343.11-166,981.98-31,375.77

Finding the Fourth Proportional to 111,343.11, 166,981.98 and 31,375.77

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Solution

The fourth proportional to 111,343.11, 166,981.98 and 31,375.77 is: 47,054.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,343.11 : 166,981.98 = 31,375.77 : x
  2. Step 2: Convert to fraction form
    111,343.11/166,981.98 = 31,375.77/x
  3. Step 3: Cross multiply
    111,343.11x = 166,981.98 × 31,375.77
  4. Step 4: Simplify right side
    111,343.11x = 5,239,188,198.62
  5. Step 5: Solve for x
    x = 5,239,188,198.62/111,343.11
  6. Step 6: Final answer
    x = 47,054.44

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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.