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Finding the Fourth Proportional to 168,626.06, 252,906.59 and 78,643.94

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Solution

The fourth proportional to 168,626.06, 252,906.59 and 78,643.94 is: 117,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,626.06 : 252,906.59 = 78,643.94 : x
  2. Step 2: Convert to fraction form
    168,626.06/252,906.59 = 78,643.94/x
  3. Step 3: Cross multiply
    168,626.06x = 252,906.59 × 78,643.94
  4. Step 4: Simplify right side
    168,626.06x = 19,889,570,689.56
  5. Step 5: Solve for x
    x = 19,889,570,689.56/168,626.06
  6. Step 6: Final answer
    x = 117,950.75

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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.