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Finding the Fourth Proportional to 198,601.56, 274,075.38 and 107,963.64

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Solution

The fourth proportional to 198,601.56, 274,075.38 and 107,963.64 is: 148,992.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,601.56 : 274,075.38 = 107,963.64 : x
  2. Step 2: Convert to fraction form
    198,601.56/274,075.38 = 107,963.64/x
  3. Step 3: Cross multiply
    198,601.56x = 274,075.38 × 107,963.64
  4. Step 4: Simplify right side
    198,601.56x = 29,590,175,659.18
  5. Step 5: Solve for x
    x = 29,590,175,659.18/198,601.56
  6. Step 6: Final answer
    x = 148,992.66

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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.