Home / 100,188.28-150,149.58-40,991.86

Finding the Fourth Proportional to 100,188.28, 150,149.58 and 40,991.86

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Solution

The fourth proportional to 100,188.28, 150,149.58 and 40,991.86 is: 61,433.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,188.28 : 150,149.58 = 40,991.86 : x
  2. Step 2: Convert to fraction form
    100,188.28/150,149.58 = 40,991.86/x
  3. Step 3: Cross multiply
    100,188.28x = 150,149.58 × 40,991.86
  4. Step 4: Simplify right side
    100,188.28x = 6,154,910,562.42
  5. Step 5: Solve for x
    x = 6,154,910,562.42/100,188.28
  6. Step 6: Final answer
    x = 61,433.44

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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.