Home / 172,704.33-259,091.43-72,864.75

Finding the Fourth Proportional to 172,704.33, 259,091.43 and 72,864.75

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Solution

The fourth proportional to 172,704.33, 259,091.43 and 72,864.75 is: 109,311.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,704.33 : 259,091.43 = 72,864.75 : x
  2. Step 2: Convert to fraction form
    172,704.33/259,091.43 = 72,864.75/x
  3. Step 3: Cross multiply
    172,704.33x = 259,091.43 × 72,864.75
  4. Step 4: Simplify right side
    172,704.33x = 18,878,632,274.09
  5. Step 5: Solve for x
    x = 18,878,632,274.09/172,704.33
  6. Step 6: Final answer
    x = 109,311.86

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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.