Home / 172,183.28-258,301.62-87,897.78

Finding the Fourth Proportional to 172,183.28, 258,301.62 and 87,897.78

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Solution

The fourth proportional to 172,183.28, 258,301.62 and 87,897.78 is: 131,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,183.28 : 258,301.62 = 87,897.78 : x
  2. Step 2: Convert to fraction form
    172,183.28/258,301.62 = 87,897.78/x
  3. Step 3: Cross multiply
    172,183.28x = 258,301.62 × 87,897.78
  4. Step 4: Simplify right side
    172,183.28x = 22,704,138,968.40
  5. Step 5: Solve for x
    x = 22,704,138,968.40/172,183.28
  6. Step 6: Final answer
    x = 131,860.30

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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.