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Finding the Fourth Proportional to 172,745.69, 259,118.55 and 67,490.87

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Solution

The fourth proportional to 172,745.69, 259,118.55 and 67,490.87 is: 101,236.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,745.69 : 259,118.55 = 67,490.87 : x
  2. Step 2: Convert to fraction form
    172,745.69/259,118.55 = 67,490.87/x
  3. Step 3: Cross multiply
    172,745.69x = 259,118.55 × 67,490.87
  4. Step 4: Simplify right side
    172,745.69x = 17,488,135,077.05
  5. Step 5: Solve for x
    x = 17,488,135,077.05/172,745.69
  6. Step 6: Final answer
    x = 101,236.31

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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.