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Finding the Fourth Proportional to 133,286.10, 199,601.10 and 88,671.30

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Solution

The fourth proportional to 133,286.10, 199,601.10 and 88,671.30 is: 132,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,286.10 : 199,601.10 = 88,671.30 : x
  2. Step 2: Convert to fraction form
    133,286.10/199,601.10 = 88,671.30/x
  3. Step 3: Cross multiply
    133,286.10x = 199,601.10 × 88,671.30
  4. Step 4: Simplify right side
    133,286.10x = 17,698,889,018.43
  5. Step 5: Solve for x
    x = 17,698,889,018.43/133,286.10
  6. Step 6: Final answer
    x = 132,788.71

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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.