Home / 109,640.20-164,460.30-106,359.70

Finding the Fourth Proportional to 109,640.20, 164,460.30 and 106,359.70

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Solution

The fourth proportional to 109,640.20, 164,460.30 and 106,359.70 is: 159,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,640.20 : 164,460.30 = 106,359.70 : x
  2. Step 2: Convert to fraction form
    109,640.20/164,460.30 = 106,359.70/x
  3. Step 3: Cross multiply
    109,640.20x = 164,460.30 × 106,359.70
  4. Step 4: Simplify right side
    109,640.20x = 17,491,948,169.91
  5. Step 5: Solve for x
    x = 17,491,948,169.91/109,640.20
  6. Step 6: Final answer
    x = 159,539.55

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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.