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Finding the Fourth Proportional to 102,183.54, 140,933.39 and 66,385.08

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Solution

The fourth proportional to 102,183.54, 140,933.39 and 66,385.08 is: 91,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,183.54 : 140,933.39 = 66,385.08 : x
  2. Step 2: Convert to fraction form
    102,183.54/140,933.39 = 66,385.08/x
  3. Step 3: Cross multiply
    102,183.54x = 140,933.39 × 66,385.08
  4. Step 4: Simplify right side
    102,183.54x = 9,355,874,369.82
  5. Step 5: Solve for x
    x = 9,355,874,369.82/102,183.54
  6. Step 6: Final answer
    x = 91,559.51

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