Home / 156,067.20-234,109.44-66,124.80

Finding the Fourth Proportional to 156,067.20, 234,109.44 and 66,124.80

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Solution

The fourth proportional to 156,067.20, 234,109.44 and 66,124.80 is: 99,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,067.20 : 234,109.44 = 66,124.80 : x
  2. Step 2: Convert to fraction form
    156,067.20/234,109.44 = 66,124.80/x
  3. Step 3: Cross multiply
    156,067.20x = 234,109.44 × 66,124.80
  4. Step 4: Simplify right side
    156,067.20x = 15,480,439,898.11
  5. Step 5: Solve for x
    x = 15,480,439,898.11/156,067.20
  6. Step 6: Final answer
    x = 99,190.86

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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.