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Finding the Fourth Proportional to 159,612.72, 220,265.56 and 91,634.10

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Solution

The fourth proportional to 159,612.72, 220,265.56 and 91,634.10 is: 126,455.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,612.72 : 220,265.56 = 91,634.10 : x
  2. Step 2: Convert to fraction form
    159,612.72/220,265.56 = 91,634.10/x
  3. Step 3: Cross multiply
    159,612.72x = 220,265.56 × 91,634.10
  4. Step 4: Simplify right side
    159,612.72x = 20,183,836,351.60
  5. Step 5: Solve for x
    x = 20,183,836,351.60/159,612.72
  6. Step 6: Final answer
    x = 126,455.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.