Home / 122,469.78-183,533.60-66,188.56

Finding the Fourth Proportional to 122,469.78, 183,533.60 and 66,188.56

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Solution

The fourth proportional to 122,469.78, 183,533.60 and 66,188.56 is: 99,190.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,469.78 : 183,533.60 = 66,188.56 : x
  2. Step 2: Convert to fraction form
    122,469.78/183,533.60 = 66,188.56/x
  3. Step 3: Cross multiply
    122,469.78x = 183,533.60 × 66,188.56
  4. Step 4: Simplify right side
    122,469.78x = 12,147,824,695.62
  5. Step 5: Solve for x
    x = 12,147,824,695.62/122,469.78
  6. Step 6: Final answer
    x = 99,190.39

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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.