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Finding the Fourth Proportional to 133,069.60, 199,604.40 and 126,508.60

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Solution

The fourth proportional to 133,069.60, 199,604.40 and 126,508.60 is: 189,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,069.60 : 199,604.40 = 126,508.60 : x
  2. Step 2: Convert to fraction form
    133,069.60/199,604.40 = 126,508.60/x
  3. Step 3: Cross multiply
    133,069.60x = 199,604.40 × 126,508.60
  4. Step 4: Simplify right side
    133,069.60x = 25,251,673,197.84
  5. Step 5: Solve for x
    x = 25,251,673,197.84/133,069.60
  6. Step 6: Final answer
    x = 189,762.90

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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.