Home / 120,922.26-166,919.22-80,621.32

Finding the Fourth Proportional to 120,922.26, 166,919.22 and 80,621.32

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Solution

The fourth proportional to 120,922.26, 166,919.22 and 80,621.32 is: 111,288.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,922.26 : 166,919.22 = 80,621.32 : x
  2. Step 2: Convert to fraction form
    120,922.26/166,919.22 = 80,621.32/x
  3. Step 3: Cross multiply
    120,922.26x = 166,919.22 × 80,621.32
  4. Step 4: Simplify right side
    120,922.26x = 13,457,247,849.77
  5. Step 5: Solve for x
    x = 13,457,247,849.77/120,922.26
  6. Step 6: Final answer
    x = 111,288.42

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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.