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Finding the Fourth Proportional to 172,759.62, 259,028.49 and 72,892.50

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Solution

The fourth proportional to 172,759.62, 259,028.49 and 72,892.50 is: 109,291.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,759.62 : 259,028.49 = 72,892.50 : x
  2. Step 2: Convert to fraction form
    172,759.62/259,028.49 = 72,892.50/x
  3. Step 3: Cross multiply
    172,759.62x = 259,028.49 × 72,892.50
  4. Step 4: Simplify right side
    172,759.62x = 18,881,234,207.33
  5. Step 5: Solve for x
    x = 18,881,234,207.33/172,759.62
  6. Step 6: Final answer
    x = 109,291.94

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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.