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Finding the Fourth Proportional to 101,375.28, 151,829.64 and 80,924.40

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Solution

The fourth proportional to 101,375.28, 151,829.64 and 80,924.40 is: 121,200.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,375.28 : 151,829.64 = 80,924.40 : x
  2. Step 2: Convert to fraction form
    101,375.28/151,829.64 = 80,924.40/x
  3. Step 3: Cross multiply
    101,375.28x = 151,829.64 × 80,924.40
  4. Step 4: Simplify right side
    101,375.28x = 12,286,722,519.22
  5. Step 5: Solve for x
    x = 12,286,722,519.22/101,375.28
  6. Step 6: Final answer
    x = 121,200.38

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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.