Home / 115,537.50-172,805.94-68,039.37

Finding the Fourth Proportional to 115,537.50, 172,805.94 and 68,039.37

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Solution

The fourth proportional to 115,537.50, 172,805.94 and 68,039.37 is: 101,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,537.50 : 172,805.94 = 68,039.37 : x
  2. Step 2: Convert to fraction form
    115,537.50/172,805.94 = 68,039.37/x
  3. Step 3: Cross multiply
    115,537.50x = 172,805.94 × 68,039.37
  4. Step 4: Simplify right side
    115,537.50x = 11,757,607,289.86
  5. Step 5: Solve for x
    x = 11,757,607,289.86/115,537.50
  6. Step 6: Final answer
    x = 101,764.43

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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.