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Finding the Fourth Proportional to 168,748.80, 252,928.80 and 68,859.60

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Solution

The fourth proportional to 168,748.80, 252,928.80 and 68,859.60 is: 103,210.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,748.80 : 252,928.80 = 68,859.60 : x
  2. Step 2: Convert to fraction form
    168,748.80/252,928.80 = 68,859.60/x
  3. Step 3: Cross multiply
    168,748.80x = 252,928.80 × 68,859.60
  4. Step 4: Simplify right side
    168,748.80x = 17,416,575,996.48
  5. Step 5: Solve for x
    x = 17,416,575,996.48/168,748.80
  6. Step 6: Final answer
    x = 103,210.07

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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.