Home / 156,771.80-235,198.22-68,005

Finding the Fourth Proportional to 156,771.80, 235,198.22 and 68,005

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Solution

The fourth proportional to 156,771.80, 235,198.22 and 68,005 is: 102,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,771.80 : 235,198.22 = 68,005 : x
  2. Step 2: Convert to fraction form
    156,771.80/235,198.22 = 68,005/x
  3. Step 3: Cross multiply
    156,771.80x = 235,198.22 × 68,005
  4. Step 4: Simplify right side
    156,771.80x = 15,994,654,951.10
  5. Step 5: Solve for x
    x = 15,994,654,951.10/156,771.80
  6. Step 6: Final answer
    x = 102,025.08

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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.