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Finding the Fourth Proportional to 143,296.92, 213,893.57 and 132,741

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Solution

The fourth proportional to 143,296.92, 213,893.57 and 132,741 is: 198,137.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,296.92 : 213,893.57 = 132,741 : x
  2. Step 2: Convert to fraction form
    143,296.92/213,893.57 = 132,741/x
  3. Step 3: Cross multiply
    143,296.92x = 213,893.57 × 132,741
  4. Step 4: Simplify right side
    143,296.92x = 28,392,446,375.37
  5. Step 5: Solve for x
    x = 28,392,446,375.37/143,296.92
  6. Step 6: Final answer
    x = 198,137.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.