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Finding the Fourth Proportional to 139,104, 208,696.32 and 40,608

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Solution

The fourth proportional to 139,104, 208,696.32 and 40,608 is: 60,923.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,104 : 208,696.32 = 40,608 : x
  2. Step 2: Convert to fraction form
    139,104/208,696.32 = 40,608/x
  3. Step 3: Cross multiply
    139,104x = 208,696.32 × 40,608
  4. Step 4: Simplify right side
    139,104x = 8,474,740,162.56
  5. Step 5: Solve for x
    x = 8,474,740,162.56/139,104
  6. Step 6: Final answer
    x = 60,923.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.