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Finding the Fourth Proportional to 139,115.44, 208,669.44 and 39,282.52

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Solution

The fourth proportional to 139,115.44, 208,669.44 and 39,282.52 is: 58,922.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,115.44 : 208,669.44 = 39,282.52 : x
  2. Step 2: Convert to fraction form
    139,115.44/208,669.44 = 39,282.52/x
  3. Step 3: Cross multiply
    139,115.44x = 208,669.44 × 39,282.52
  4. Step 4: Simplify right side
    139,115.44x = 8,197,061,450.19
  5. Step 5: Solve for x
    x = 8,197,061,450.19/139,115.44
  6. Step 6: Final answer
    x = 58,922.73

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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.