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Finding the Fourth Proportional to 104,481.60, 156,722.40 and 30,609.60

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Solution

The fourth proportional to 104,481.60, 156,722.40 and 30,609.60 is: 45,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,481.60 : 156,722.40 = 30,609.60 : x
  2. Step 2: Convert to fraction form
    104,481.60/156,722.40 = 30,609.60/x
  3. Step 3: Cross multiply
    104,481.60x = 156,722.40 × 30,609.60
  4. Step 4: Simplify right side
    104,481.60x = 4,797,209,975.04
  5. Step 5: Solve for x
    x = 4,797,209,975.04/104,481.60
  6. Step 6: Final answer
    x = 45,914.40

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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.