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Finding the Fourth Proportional to 135,661.60, 203,103.60 and 131,773.60

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Solution

The fourth proportional to 135,661.60, 203,103.60 and 131,773.60 is: 197,282.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,661.60 : 203,103.60 = 131,773.60 : x
  2. Step 2: Convert to fraction form
    135,661.60/203,103.60 = 131,773.60/x
  3. Step 3: Cross multiply
    135,661.60x = 203,103.60 × 131,773.60
  4. Step 4: Simplify right side
    135,661.60x = 26,763,692,544.96
  5. Step 5: Solve for x
    x = 26,763,692,544.96/135,661.60
  6. Step 6: Final answer
    x = 197,282.74

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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.