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Finding the Fourth Proportional to 172,772.92, 259,234.26 and 84,103.48

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Solution

The fourth proportional to 172,772.92, 259,234.26 and 84,103.48 is: 126,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,772.92 : 259,234.26 = 84,103.48 : x
  2. Step 2: Convert to fraction form
    172,772.92/259,234.26 = 84,103.48/x
  3. Step 3: Cross multiply
    172,772.92x = 259,234.26 × 84,103.48
  4. Step 4: Simplify right side
    172,772.92x = 21,802,503,401.22
  5. Step 5: Solve for x
    x = 21,802,503,401.22/172,772.92
  6. Step 6: Final answer
    x = 126,191.67

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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.