Home / 122,481.72-183,567.06-67,116.60

Finding the Fourth Proportional to 122,481.72, 183,567.06 and 67,116.60

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Solution

The fourth proportional to 122,481.72, 183,567.06 and 67,116.60 is: 100,589.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,481.72 : 183,567.06 = 67,116.60 : x
  2. Step 2: Convert to fraction form
    122,481.72/183,567.06 = 67,116.60/x
  3. Step 3: Cross multiply
    122,481.72x = 183,567.06 × 67,116.60
  4. Step 4: Simplify right side
    122,481.72x = 12,320,396,939.20
  5. Step 5: Solve for x
    x = 12,320,396,939.20/122,481.72
  6. Step 6: Final answer
    x = 100,589.68

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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.