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Finding the Fourth Proportional to 161,446.60, 242,169.90 and 126,416.20

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Solution

The fourth proportional to 161,446.60, 242,169.90 and 126,416.20 is: 189,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,446.60 : 242,169.90 = 126,416.20 : x
  2. Step 2: Convert to fraction form
    161,446.60/242,169.90 = 126,416.20/x
  3. Step 3: Cross multiply
    161,446.60x = 242,169.90 × 126,416.20
  4. Step 4: Simplify right side
    161,446.60x = 30,614,198,512.38
  5. Step 5: Solve for x
    x = 30,614,198,512.38/161,446.60
  6. Step 6: Final answer
    x = 189,624.30

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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.