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Finding the Fourth Proportional to 107,000.40, 160,500.60 and 28,122.60

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Solution

The fourth proportional to 107,000.40, 160,500.60 and 28,122.60 is: 42,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,000.40 : 160,500.60 = 28,122.60 : x
  2. Step 2: Convert to fraction form
    107,000.40/160,500.60 = 28,122.60/x
  3. Step 3: Cross multiply
    107,000.40x = 160,500.60 × 28,122.60
  4. Step 4: Simplify right side
    107,000.40x = 4,513,694,173.56
  5. Step 5: Solve for x
    x = 4,513,694,173.56/107,000.40
  6. Step 6: Final answer
    x = 42,183.90

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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.