Home / 109,898.20-164,847.30-109,120.60

Finding the Fourth Proportional to 109,898.20, 164,847.30 and 109,120.60

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Solution

The fourth proportional to 109,898.20, 164,847.30 and 109,120.60 is: 163,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,898.20 : 164,847.30 = 109,120.60 : x
  2. Step 2: Convert to fraction form
    109,898.20/164,847.30 = 109,120.60/x
  3. Step 3: Cross multiply
    109,898.20x = 164,847.30 × 109,120.60
  4. Step 4: Simplify right side
    109,898.20x = 17,988,236,284.38
  5. Step 5: Solve for x
    x = 17,988,236,284.38/109,898.20
  6. Step 6: Final answer
    x = 163,680.90

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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.