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Finding the Fourth Proportional to 168,778.80, 253,009.80 and 63,668.40

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Solution

The fourth proportional to 168,778.80, 253,009.80 and 63,668.40 is: 95,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,778.80 : 253,009.80 = 63,668.40 : x
  2. Step 2: Convert to fraction form
    168,778.80/253,009.80 = 63,668.40/x
  3. Step 3: Cross multiply
    168,778.80x = 253,009.80 × 63,668.40
  4. Step 4: Simplify right side
    168,778.80x = 16,108,729,150.32
  5. Step 5: Solve for x
    x = 16,108,729,150.32/168,778.80
  6. Step 6: Final answer
    x = 95,442.85

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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.