Home / 122,583.60-183,778.20-67,179.60

Finding the Fourth Proportional to 122,583.60, 183,778.20 and 67,179.60

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Solution

The fourth proportional to 122,583.60, 183,778.20 and 67,179.60 is: 100,716.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,583.60 : 183,778.20 = 67,179.60 : x
  2. Step 2: Convert to fraction form
    122,583.60/183,778.20 = 67,179.60/x
  3. Step 3: Cross multiply
    122,583.60x = 183,778.20 × 67,179.60
  4. Step 4: Simplify right side
    122,583.60x = 12,346,145,964.72
  5. Step 5: Solve for x
    x = 12,346,145,964.72/122,583.60
  6. Step 6: Final answer
    x = 100,716.13

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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.