Home / 105,067.96-144,993.62-57,321.29

Finding the Fourth Proportional to 105,067.96, 144,993.62 and 57,321.29

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Solution

The fourth proportional to 105,067.96, 144,993.62 and 57,321.29 is: 79,103.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,067.96 : 144,993.62 = 57,321.29 : x
  2. Step 2: Convert to fraction form
    105,067.96/144,993.62 = 57,321.29/x
  3. Step 3: Cross multiply
    105,067.96x = 144,993.62 × 57,321.29
  4. Step 4: Simplify right side
    105,067.96x = 8,311,221,845.96
  5. Step 5: Solve for x
    x = 8,311,221,845.96/105,067.96
  6. Step 6: Final answer
    x = 79,103.30

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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.