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Finding the Fourth Proportional to 161,131.92, 241,464.48 and 90,861.84

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Solution

The fourth proportional to 161,131.92, 241,464.48 and 90,861.84 is: 136,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,131.92 : 241,464.48 = 90,861.84 : x
  2. Step 2: Convert to fraction form
    161,131.92/241,464.48 = 90,861.84/x
  3. Step 3: Cross multiply
    161,131.92x = 241,464.48 × 90,861.84
  4. Step 4: Simplify right side
    161,131.92x = 21,939,906,947.44
  5. Step 5: Solve for x
    x = 21,939,906,947.44/161,131.92
  6. Step 6: Final answer
    x = 136,161.15

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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.