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Finding the Fourth Proportional to 168,670.80, 252,756 and 68,708.88

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Solution

The fourth proportional to 168,670.80, 252,756 and 68,708.88 is: 102,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,670.80 : 252,756 = 68,708.88 : x
  2. Step 2: Convert to fraction form
    168,670.80/252,756 = 68,708.88/x
  3. Step 3: Cross multiply
    168,670.80x = 252,756 × 68,708.88
  4. Step 4: Simplify right side
    168,670.80x = 17,366,581,673.28
  5. Step 5: Solve for x
    x = 17,366,581,673.28/168,670.80
  6. Step 6: Final answer
    x = 102,961.40

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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.