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Finding the Fourth Proportional to 168,051.30, 252,004.05 and 68,178.30

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Solution

The fourth proportional to 168,051.30, 252,004.05 and 68,178.30 is: 102,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,051.30 : 252,004.05 = 68,178.30 : x
  2. Step 2: Convert to fraction form
    168,051.30/252,004.05 = 68,178.30/x
  3. Step 3: Cross multiply
    168,051.30x = 252,004.05 × 68,178.30
  4. Step 4: Simplify right side
    168,051.30x = 17,181,207,722.12
  5. Step 5: Solve for x
    x = 17,181,207,722.12/168,051.30
  6. Step 6: Final answer
    x = 102,237.87

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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.