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Finding the Fourth Proportional to 135,963.60, 203,945.40 and 134,979.45

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Solution

The fourth proportional to 135,963.60, 203,945.40 and 134,979.45 is: 202,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,963.60 : 203,945.40 = 134,979.45 : x
  2. Step 2: Convert to fraction form
    135,963.60/203,945.40 = 134,979.45/x
  3. Step 3: Cross multiply
    135,963.60x = 203,945.40 × 134,979.45
  4. Step 4: Simplify right side
    135,963.60x = 27,528,437,922.03
  5. Step 5: Solve for x
    x = 27,528,437,922.03/135,963.60
  6. Step 6: Final answer
    x = 202,469.18

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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.