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Finding the Fourth Proportional to 172,745.86, 259,257.03 and 89,663.62

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Solution

The fourth proportional to 172,745.86, 259,257.03 and 89,663.62 is: 134,567.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,745.86 : 259,257.03 = 89,663.62 : x
  2. Step 2: Convert to fraction form
    172,745.86/259,257.03 = 89,663.62/x
  3. Step 3: Cross multiply
    172,745.86x = 259,257.03 × 89,663.62
  4. Step 4: Simplify right side
    172,745.86x = 23,245,923,820.25
  5. Step 5: Solve for x
    x = 23,245,923,820.25/172,745.86
  6. Step 6: Final answer
    x = 134,567.18

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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.