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Finding the Fourth Proportional to 168,305.59, 252,264.48 and 68,356

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Solution

The fourth proportional to 168,305.59, 252,264.48 and 68,356 is: 102,455.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,305.59 : 252,264.48 = 68,356 : x
  2. Step 2: Convert to fraction form
    168,305.59/252,264.48 = 68,356/x
  3. Step 3: Cross multiply
    168,305.59x = 252,264.48 × 68,356
  4. Step 4: Simplify right side
    168,305.59x = 17,243,790,794.88
  5. Step 5: Solve for x
    x = 17,243,790,794.88/168,305.59
  6. Step 6: Final answer
    x = 102,455.25

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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.