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Finding the Fourth Proportional to 168,783.85, 253,300.38 and 80,037.65

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Solution

The fourth proportional to 168,783.85, 253,300.38 and 80,037.65 is: 120,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,783.85 : 253,300.38 = 80,037.65 : x
  2. Step 2: Convert to fraction form
    168,783.85/253,300.38 = 80,037.65/x
  3. Step 3: Cross multiply
    168,783.85x = 253,300.38 × 80,037.65
  4. Step 4: Simplify right side
    168,783.85x = 20,273,565,492.62
  5. Step 5: Solve for x
    x = 20,273,565,492.62/168,783.85
  6. Step 6: Final answer
    x = 120,115.56

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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.