Home / 168,068.11-252,120.63-68,213.80

Finding the Fourth Proportional to 168,068.11, 252,120.63 and 68,213.80

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Solution

The fourth proportional to 168,068.11, 252,120.63 and 68,213.80 is: 102,328.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,068.11 : 252,120.63 = 68,213.80 : x
  2. Step 2: Convert to fraction form
    168,068.11/252,120.63 = 68,213.80/x
  3. Step 3: Cross multiply
    168,068.11x = 252,120.63 × 68,213.80
  4. Step 4: Simplify right side
    168,068.11x = 17,198,106,230.69
  5. Step 5: Solve for x
    x = 17,198,106,230.69/168,068.11
  6. Step 6: Final answer
    x = 102,328.19

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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.