Home / 100,960.20-151,440.30-48,342.60

Finding the Fourth Proportional to 100,960.20, 151,440.30 and 48,342.60

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Solution

The fourth proportional to 100,960.20, 151,440.30 and 48,342.60 is: 72,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,960.20 : 151,440.30 = 48,342.60 : x
  2. Step 2: Convert to fraction form
    100,960.20/151,440.30 = 48,342.60/x
  3. Step 3: Cross multiply
    100,960.20x = 151,440.30 × 48,342.60
  4. Step 4: Simplify right side
    100,960.20x = 7,321,017,846.78
  5. Step 5: Solve for x
    x = 7,321,017,846.78/100,960.20
  6. Step 6: Final answer
    x = 72,513.90

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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.