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Finding the Fourth Proportional to 168,052.60, 252,078.90 and 79,479.10

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Solution

The fourth proportional to 168,052.60, 252,078.90 and 79,479.10 is: 119,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,052.60 : 252,078.90 = 79,479.10 : x
  2. Step 2: Convert to fraction form
    168,052.60/252,078.90 = 79,479.10/x
  3. Step 3: Cross multiply
    168,052.60x = 252,078.90 × 79,479.10
  4. Step 4: Simplify right side
    168,052.60x = 20,035,004,100.99
  5. Step 5: Solve for x
    x = 20,035,004,100.99/168,052.60
  6. Step 6: Final answer
    x = 119,218.65

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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.