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Finding the Fourth Proportional to 168,205.60, 252,108.60 and 89,279.20

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Solution

The fourth proportional to 168,205.60, 252,108.60 and 89,279.20 is: 133,812.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,205.60 : 252,108.60 = 89,279.20 : x
  2. Step 2: Convert to fraction form
    168,205.60/252,108.60 = 89,279.20/x
  3. Step 3: Cross multiply
    168,205.60x = 252,108.60 × 89,279.20
  4. Step 4: Simplify right side
    168,205.60x = 22,508,054,121.12
  5. Step 5: Solve for x
    x = 22,508,054,121.12/168,205.60
  6. Step 6: Final answer
    x = 133,812.75

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1.5x scale

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.