Home / 100,966.20-151,449.30-48,348.60

Finding the Fourth Proportional to 100,966.20, 151,449.30 and 48,348.60

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Solution

The fourth proportional to 100,966.20, 151,449.30 and 48,348.60 is: 72,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,966.20 : 151,449.30 = 48,348.60 : x
  2. Step 2: Convert to fraction form
    100,966.20/151,449.30 = 48,348.60/x
  3. Step 3: Cross multiply
    100,966.20x = 151,449.30 × 48,348.60
  4. Step 4: Simplify right side
    100,966.20x = 7,322,361,625.98
  5. Step 5: Solve for x
    x = 7,322,361,625.98/100,966.20
  6. Step 6: Final answer
    x = 72,522.90

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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.