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Finding the Fourth Proportional to 172,843.60, 259,161.72 and 67,537.12

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Solution

The fourth proportional to 172,843.60, 259,161.72 and 67,537.12 is: 101,265.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,843.60 : 259,161.72 = 67,537.12 : x
  2. Step 2: Convert to fraction form
    172,843.60/259,161.72 = 67,537.12/x
  3. Step 3: Cross multiply
    172,843.60x = 259,161.72 × 67,537.12
  4. Step 4: Simplify right side
    172,843.60x = 17,503,036,183.05
  5. Step 5: Solve for x
    x = 17,503,036,183.05/172,843.60
  6. Step 6: Final answer
    x = 101,265.17

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1.5x scale

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.