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Finding the Fourth Proportional to 100,557.43, 150,834.31 and 84,863.27

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Solution

The fourth proportional to 100,557.43, 150,834.31 and 84,863.27 is: 127,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,557.43 : 150,834.31 = 84,863.27 : x
  2. Step 2: Convert to fraction form
    100,557.43/150,834.31 = 84,863.27/x
  3. Step 3: Cross multiply
    100,557.43x = 150,834.31 × 84,863.27
  4. Step 4: Simplify right side
    100,557.43x = 12,800,292,939.72
  5. Step 5: Solve for x
    x = 12,800,292,939.72/100,557.43
  6. Step 6: Final answer
    x = 127,293.36

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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.