Home / 109,569.78-164,255.99-39,399.75

Finding the Fourth Proportional to 109,569.78, 164,255.99 and 39,399.75

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Solution

The fourth proportional to 109,569.78, 164,255.99 and 39,399.75 is: 59,064.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,569.78 : 164,255.99 = 39,399.75 : x
  2. Step 2: Convert to fraction form
    109,569.78/164,255.99 = 39,399.75/x
  3. Step 3: Cross multiply
    109,569.78x = 164,255.99 × 39,399.75
  4. Step 4: Simplify right side
    109,569.78x = 6,471,644,745.00
  5. Step 5: Solve for x
    x = 6,471,644,745.00/109,569.78
  6. Step 6: Final answer
    x = 59,064.14

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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.