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Finding the Fourth Proportional to 135,385.60, 203,078.40 and 131,497.60

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Solution

The fourth proportional to 135,385.60, 203,078.40 and 131,497.60 is: 197,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,385.60 : 203,078.40 = 131,497.60 : x
  2. Step 2: Convert to fraction form
    135,385.60/203,078.40 = 131,497.60/x
  3. Step 3: Cross multiply
    135,385.60x = 203,078.40 × 131,497.60
  4. Step 4: Simplify right side
    135,385.60x = 26,704,322,211.84
  5. Step 5: Solve for x
    x = 26,704,322,211.84/135,385.60
  6. Step 6: Final answer
    x = 197,246.40

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1.5x scale

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.