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Finding the Fourth Proportional to 168,474.37, 252,707.19 and 68,634.40

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Solution

The fourth proportional to 168,474.37, 252,707.19 and 68,634.40 is: 102,949.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,474.37 : 252,707.19 = 68,634.40 : x
  2. Step 2: Convert to fraction form
    168,474.37/252,707.19 = 68,634.40/x
  3. Step 3: Cross multiply
    168,474.37x = 252,707.19 × 68,634.40
  4. Step 4: Simplify right side
    168,474.37x = 17,344,406,361.34
  5. Step 5: Solve for x
    x = 17,344,406,361.34/168,474.37
  6. Step 6: Final answer
    x = 102,949.82

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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.