Home / 172,069.43-237,414.26-100,408.55

Finding the Fourth Proportional to 172,069.43, 237,414.26 and 100,408.55

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Solution

The fourth proportional to 172,069.43, 237,414.26 and 100,408.55 is: 138,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,069.43 : 237,414.26 = 100,408.55 : x
  2. Step 2: Convert to fraction form
    172,069.43/237,414.26 = 100,408.55/x
  3. Step 3: Cross multiply
    172,069.43x = 237,414.26 × 100,408.55
  4. Step 4: Simplify right side
    172,069.43x = 23,838,419,906.81
  5. Step 5: Solve for x
    x = 23,838,419,906.81/172,069.43
  6. Step 6: Final answer
    x = 138,539.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.