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Finding the Fourth Proportional to 168,255.84, 252,134.43 and 68,294.40

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Solution

The fourth proportional to 168,255.84, 252,134.43 and 68,294.40 is: 102,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,255.84 : 252,134.43 = 68,294.40 : x
  2. Step 2: Convert to fraction form
    168,255.84/252,134.43 = 68,294.40/x
  3. Step 3: Cross multiply
    168,255.84x = 252,134.43 × 68,294.40
  4. Step 4: Simplify right side
    168,255.84x = 17,219,369,616.19
  5. Step 5: Solve for x
    x = 17,219,369,616.19/168,255.84
  6. Step 6: Final answer
    x = 102,340.40

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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.