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Finding the Fourth Proportional to 100,375.56, 150,612.48 and 70,982.28

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Solution

The fourth proportional to 100,375.56, 150,612.48 and 70,982.28 is: 106,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,375.56 : 150,612.48 = 70,982.28 : x
  2. Step 2: Convert to fraction form
    100,375.56/150,612.48 = 70,982.28/x
  3. Step 3: Cross multiply
    100,375.56x = 150,612.48 × 70,982.28
  4. Step 4: Simplify right side
    100,375.56x = 10,690,817,226.85
  5. Step 5: Solve for x
    x = 10,690,817,226.85/100,375.56
  6. Step 6: Final answer
    x = 106,508.17

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1.5x scale

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.