Home / 136,410.22-188,231.71-79,067.53

Finding the Fourth Proportional to 136,410.22, 188,231.71 and 79,067.53

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Solution

The fourth proportional to 136,410.22, 188,231.71 and 79,067.53 is: 109,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,410.22 : 188,231.71 = 79,067.53 : x
  2. Step 2: Convert to fraction form
    136,410.22/188,231.71 = 79,067.53/x
  3. Step 3: Cross multiply
    136,410.22x = 188,231.71 × 79,067.53
  4. Step 4: Simplify right side
    136,410.22x = 14,883,016,847.96
  5. Step 5: Solve for x
    x = 14,883,016,847.96/136,410.22
  6. Step 6: Final answer
    x = 109,104.85

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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.