Home / 156,512.96-215,986.30-84,891.44

Finding the Fourth Proportional to 156,512.96, 215,986.30 and 84,891.44

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Solution

The fourth proportional to 156,512.96, 215,986.30 and 84,891.44 is: 117,149.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,512.96 : 215,986.30 = 84,891.44 : x
  2. Step 2: Convert to fraction form
    156,512.96/215,986.30 = 84,891.44/x
  3. Step 3: Cross multiply
    156,512.96x = 215,986.30 × 84,891.44
  4. Step 4: Simplify right side
    156,512.96x = 18,335,388,355.01
  5. Step 5: Solve for x
    x = 18,335,388,355.01/156,512.96
  6. Step 6: Final answer
    x = 117,149.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.