Home / 80,467.20-120,777.60-68,793.60

Finding the Fourth Proportional to 80,467.20, 120,777.60 and 68,793.60

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Solution

The fourth proportional to 80,467.20, 120,777.60 and 68,793.60 is: 103,256.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,467.20 : 120,777.60 = 68,793.60 : x
  2. Step 2: Convert to fraction form
    80,467.20/120,777.60 = 68,793.60/x
  3. Step 3: Cross multiply
    80,467.20x = 120,777.60 × 68,793.60
  4. Step 4: Simplify right side
    80,467.20x = 8,308,725,903.36
  5. Step 5: Solve for x
    x = 8,308,725,903.36/80,467.20
  6. Step 6: Final answer
    x = 103,256.06

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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.