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Finding the Fourth Proportional to 103,183.39, 154,774.95 and 68,114.71

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Solution

The fourth proportional to 103,183.39, 154,774.95 and 68,114.71 is: 102,171.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,183.39 : 154,774.95 = 68,114.71 : x
  2. Step 2: Convert to fraction form
    103,183.39/154,774.95 = 68,114.71/x
  3. Step 3: Cross multiply
    103,183.39x = 154,774.95 × 68,114.71
  4. Step 4: Simplify right side
    103,183.39x = 10,542,450,834.51
  5. Step 5: Solve for x
    x = 10,542,450,834.51/103,183.39
  6. Step 6: Final answer
    x = 102,171.98

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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.