Home / 172,860.21-259,532.30-88,679.75

Finding the Fourth Proportional to 172,860.21, 259,532.30 and 88,679.75

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Solution

The fourth proportional to 172,860.21, 259,532.30 and 88,679.75 is: 133,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,860.21 : 259,532.30 = 88,679.75 : x
  2. Step 2: Convert to fraction form
    172,860.21/259,532.30 = 88,679.75/x
  3. Step 3: Cross multiply
    172,860.21x = 259,532.30 × 88,679.75
  4. Step 4: Simplify right side
    172,860.21x = 23,015,258,404.96
  5. Step 5: Solve for x
    x = 23,015,258,404.96/172,860.21
  6. Step 6: Final answer
    x = 133,143.76

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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.