Home / 80,668.04-121,176.96-68,213.04

Finding the Fourth Proportional to 80,668.04, 121,176.96 and 68,213.04

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Solution

The fourth proportional to 80,668.04, 121,176.96 and 68,213.04 is: 102,467.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,668.04 : 121,176.96 = 68,213.04 : x
  2. Step 2: Convert to fraction form
    80,668.04/121,176.96 = 68,213.04/x
  3. Step 3: Cross multiply
    80,668.04x = 121,176.96 × 68,213.04
  4. Step 4: Simplify right side
    80,668.04x = 8,265,848,819.56
  5. Step 5: Solve for x
    x = 8,265,848,819.56/80,668.04
  6. Step 6: Final answer
    x = 102,467.46

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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.