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Finding the Fourth Proportional to 143,589, 215,418.24 and 45,093

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Solution

The fourth proportional to 143,589, 215,418.24 and 45,093 is: 67,650.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,589 : 215,418.24 = 45,093 : x
  2. Step 2: Convert to fraction form
    143,589/215,418.24 = 45,093/x
  3. Step 3: Cross multiply
    143,589x = 215,418.24 × 45,093
  4. Step 4: Simplify right side
    143,589x = 9,713,854,696.32
  5. Step 5: Solve for x
    x = 9,713,854,696.32/143,589
  6. Step 6: Final answer
    x = 67,650.41

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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.