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Finding the Fourth Proportional to 109,000.26, 150,358.81 and 68,644.64

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Solution

The fourth proportional to 109,000.26, 150,358.81 and 68,644.64 is: 94,690.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,000.26 : 150,358.81 = 68,644.64 : x
  2. Step 2: Convert to fraction form
    109,000.26/150,358.81 = 68,644.64/x
  3. Step 3: Cross multiply
    109,000.26x = 150,358.81 × 68,644.64
  4. Step 4: Simplify right side
    109,000.26x = 10,321,326,383.28
  5. Step 5: Solve for x
    x = 10,321,326,383.28/109,000.26
  6. Step 6: Final answer
    x = 94,690.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.