Home / 148,976.06-205,591.02-80,997.60

Finding the Fourth Proportional to 148,976.06, 205,591.02 and 80,997.60

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Solution

The fourth proportional to 148,976.06, 205,591.02 and 80,997.60 is: 111,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,976.06 : 205,591.02 = 80,997.60 : x
  2. Step 2: Convert to fraction form
    148,976.06/205,591.02 = 80,997.60/x
  3. Step 3: Cross multiply
    148,976.06x = 205,591.02 × 80,997.60
  4. Step 4: Simplify right side
    148,976.06x = 16,652,379,201.55
  5. Step 5: Solve for x
    x = 16,652,379,201.55/148,976.06
  6. Step 6: Final answer
    x = 111,778.89

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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.