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Finding the Fourth Proportional to 133,697.40, 200,520.99 and 67,119.54

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Solution

The fourth proportional to 133,697.40, 200,520.99 and 67,119.54 is: 100,666.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,697.40 : 200,520.99 = 67,119.54 : x
  2. Step 2: Convert to fraction form
    133,697.40/200,520.99 = 67,119.54/x
  3. Step 3: Cross multiply
    133,697.40x = 200,520.99 × 67,119.54
  4. Step 4: Simplify right side
    133,697.40x = 13,458,876,609.14
  5. Step 5: Solve for x
    x = 13,458,876,609.14/133,697.40
  6. Step 6: Final answer
    x = 100,666.70

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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.