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Finding the Fourth Proportional to 100,065.88, 150,217.08 and 40,945.60

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Solution

The fourth proportional to 100,065.88, 150,217.08 and 40,945.60 is: 61,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,065.88 : 150,217.08 = 40,945.60 : x
  2. Step 2: Convert to fraction form
    100,065.88/150,217.08 = 40,945.60/x
  3. Step 3: Cross multiply
    100,065.88x = 150,217.08 × 40,945.60
  4. Step 4: Simplify right side
    100,065.88x = 6,150,728,470.85
  5. Step 5: Solve for x
    x = 6,150,728,470.85/100,065.88
  6. Step 6: Final answer
    x = 61,466.79

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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.