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Finding the Fourth Proportional to 135,529.60, 203,488.80 and 102,481.60

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Solution

The fourth proportional to 135,529.60, 203,488.80 and 102,481.60 is: 153,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,529.60 : 203,488.80 = 102,481.60 : x
  2. Step 2: Convert to fraction form
    135,529.60/203,488.80 = 102,481.60/x
  3. Step 3: Cross multiply
    135,529.60x = 203,488.80 × 102,481.60
  4. Step 4: Simplify right side
    135,529.60x = 20,853,857,806.08
  5. Step 5: Solve for x
    x = 20,853,857,806.08/135,529.60
  6. Step 6: Final answer
    x = 153,869.40

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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.