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Finding the Fourth Proportional to 139,027.52, 208,541.32 and 50,279.04

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Solution

The fourth proportional to 139,027.52, 208,541.32 and 50,279.04 is: 75,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,027.52 : 208,541.32 = 50,279.04 : x
  2. Step 2: Convert to fraction form
    139,027.52/208,541.32 = 50,279.04/x
  3. Step 3: Cross multiply
    139,027.52x = 208,541.32 × 50,279.04
  4. Step 4: Simplify right side
    139,027.52x = 10,485,257,369.93
  5. Step 5: Solve for x
    x = 10,485,257,369.93/139,027.52
  6. Step 6: Final answer
    x = 75,418.57

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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.