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Finding the Fourth Proportional to 100,941.80, 151,412.70 and 100,250.60

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Solution

The fourth proportional to 100,941.80, 151,412.70 and 100,250.60 is: 150,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,941.80 : 151,412.70 = 100,250.60 : x
  2. Step 2: Convert to fraction form
    100,941.80/151,412.70 = 100,250.60/x
  3. Step 3: Cross multiply
    100,941.80x = 151,412.70 × 100,250.60
  4. Step 4: Simplify right side
    100,941.80x = 15,179,214,022.62
  5. Step 5: Solve for x
    x = 15,179,214,022.62/100,941.80
  6. Step 6: Final answer
    x = 150,375.90

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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.