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Finding the Fourth Proportional to 133,093.90, 199,640.85 and 131,344.30

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Solution

The fourth proportional to 133,093.90, 199,640.85 and 131,344.30 is: 197,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,093.90 : 199,640.85 = 131,344.30 : x
  2. Step 2: Convert to fraction form
    133,093.90/199,640.85 = 131,344.30/x
  3. Step 3: Cross multiply
    133,093.90x = 199,640.85 × 131,344.30
  4. Step 4: Simplify right side
    133,093.90x = 26,221,687,694.66
  5. Step 5: Solve for x
    x = 26,221,687,694.66/133,093.90
  6. Step 6: Final answer
    x = 197,016.45

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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.