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Finding the Fourth Proportional to 161,825.30, 242,847.30 and 90,747.80

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Solution

The fourth proportional to 161,825.30, 242,847.30 and 90,747.80 is: 136,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,825.30 : 242,847.30 = 90,747.80 : x
  2. Step 2: Convert to fraction form
    161,825.30/242,847.30 = 90,747.80/x
  3. Step 3: Cross multiply
    161,825.30x = 242,847.30 × 90,747.80
  4. Step 4: Simplify right side
    161,825.30x = 22,037,858,210.94
  5. Step 5: Solve for x
    x = 22,037,858,210.94/161,825.30
  6. Step 6: Final answer
    x = 136,183.02

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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.