Home / 159,704.08-220,391.20-91,725.45

Finding the Fourth Proportional to 159,704.08, 220,391.20 and 91,725.45

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Solution

The fourth proportional to 159,704.08, 220,391.20 and 91,725.45 is: 126,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,704.08 : 220,391.20 = 91,725.45 : x
  2. Step 2: Convert to fraction form
    159,704.08/220,391.20 = 91,725.45/x
  3. Step 3: Cross multiply
    159,704.08x = 220,391.20 × 91,725.45
  4. Step 4: Simplify right side
    159,704.08x = 20,215,481,996.04
  5. Step 5: Solve for x
    x = 20,215,481,996.04/159,704.08
  6. Step 6: Final answer
    x = 126,580.87

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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.