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Finding the Fourth Proportional to 161,223.12, 241,719.12 and 75,786.12

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Solution

The fourth proportional to 161,223.12, 241,719.12 and 75,786.12 is: 113,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,223.12 : 241,719.12 = 75,786.12 : x
  2. Step 2: Convert to fraction form
    161,223.12/241,719.12 = 75,786.12/x
  3. Step 3: Cross multiply
    161,223.12x = 241,719.12 × 75,786.12
  4. Step 4: Simplify right side
    161,223.12x = 18,318,954,234.61
  5. Step 5: Solve for x
    x = 18,318,954,234.61/161,223.12
  6. Step 6: Final answer
    x = 113,624.86

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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.