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Finding the Fourth Proportional to 123,205.87, 183,917.55 and 108,259.15

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Solution

The fourth proportional to 123,205.87, 183,917.55 and 108,259.15 is: 161,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,205.87 : 183,917.55 = 108,259.15 : x
  2. Step 2: Convert to fraction form
    123,205.87/183,917.55 = 108,259.15/x
  3. Step 3: Cross multiply
    123,205.87x = 183,917.55 × 108,259.15
  4. Step 4: Simplify right side
    123,205.87x = 19,910,757,362.43
  5. Step 5: Solve for x
    x = 19,910,757,362.43/123,205.87
  6. Step 6: Final answer
    x = 161,605.59

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.