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Finding the Fourth Proportional to 135,861.64, 203,793.14 and 79,662.22

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Solution

The fourth proportional to 135,861.64, 203,793.14 and 79,662.22 is: 119,493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,861.64 : 203,793.14 = 79,662.22 : x
  2. Step 2: Convert to fraction form
    135,861.64/203,793.14 = 79,662.22/x
  3. Step 3: Cross multiply
    135,861.64x = 203,793.14 × 79,662.22
  4. Step 4: Simplify right side
    135,861.64x = 16,234,613,953.17
  5. Step 5: Solve for x
    x = 16,234,613,953.17/135,861.64
  6. Step 6: Final answer
    x = 119,493.73

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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.