Home / 109,829.52-164,745.16-71,910.75

Finding the Fourth Proportional to 109,829.52, 164,745.16 and 71,910.75

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Solution

The fourth proportional to 109,829.52, 164,745.16 and 71,910.75 is: 107,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,829.52 : 164,745.16 = 71,910.75 : x
  2. Step 2: Convert to fraction form
    109,829.52/164,745.16 = 71,910.75/x
  3. Step 3: Cross multiply
    109,829.52x = 164,745.16 × 71,910.75
  4. Step 4: Simplify right side
    109,829.52x = 11,846,948,452.49
  5. Step 5: Solve for x
    x = 11,846,948,452.49/109,829.52
  6. Step 6: Final answer
    x = 107,866.71

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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.