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Finding the Fourth Proportional to 161,723.20, 242,584.80 and 50,915.20

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Solution

The fourth proportional to 161,723.20, 242,584.80 and 50,915.20 is: 76,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,723.20 : 242,584.80 = 50,915.20 : x
  2. Step 2: Convert to fraction form
    161,723.20/242,584.80 = 50,915.20/x
  3. Step 3: Cross multiply
    161,723.20x = 242,584.80 × 50,915.20
  4. Step 4: Simplify right side
    161,723.20x = 12,351,253,608.96
  5. Step 5: Solve for x
    x = 12,351,253,608.96/161,723.20
  6. Step 6: Final answer
    x = 76,372.80

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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.