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Finding the Fourth Proportional to 168,495.91, 252,619.01 and 79,645.59

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Solution

The fourth proportional to 168,495.91, 252,619.01 and 79,645.59 is: 119,409.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,495.91 : 252,619.01 = 79,645.59 : x
  2. Step 2: Convert to fraction form
    168,495.91/252,619.01 = 79,645.59/x
  3. Step 3: Cross multiply
    168,495.91x = 252,619.01 × 79,645.59
  4. Step 4: Simplify right side
    168,495.91x = 20,119,990,295.78
  5. Step 5: Solve for x
    x = 20,119,990,295.78/168,495.91
  6. Step 6: Final answer
    x = 119,409.37

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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.