Home / 109,660.20-164,198.70-70,002.60

Finding the Fourth Proportional to 109,660.20, 164,198.70 and 70,002.60

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Solution

The fourth proportional to 109,660.20, 164,198.70 and 70,002.60 is: 104,817.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,660.20 : 164,198.70 = 70,002.60 : x
  2. Step 2: Convert to fraction form
    109,660.20/164,198.70 = 70,002.60/x
  3. Step 3: Cross multiply
    109,660.20x = 164,198.70 × 70,002.60
  4. Step 4: Simplify right side
    109,660.20x = 11,494,335,916.62
  5. Step 5: Solve for x
    x = 11,494,335,916.62/109,660.20
  6. Step 6: Final answer
    x = 104,817.75

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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.