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Finding the Fourth Proportional to 123,177.60, 184,766.40 and 122,011.20

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Solution

The fourth proportional to 123,177.60, 184,766.40 and 122,011.20 is: 183,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,177.60 : 184,766.40 = 122,011.20 : x
  2. Step 2: Convert to fraction form
    123,177.60/184,766.40 = 122,011.20/x
  3. Step 3: Cross multiply
    123,177.60x = 184,766.40 × 122,011.20
  4. Step 4: Simplify right side
    123,177.60x = 22,543,570,183.68
  5. Step 5: Solve for x
    x = 22,543,570,183.68/123,177.60
  6. Step 6: Final answer
    x = 183,016.80

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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.