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Finding the Fourth Proportional to 159,622.76, 220,279.34 and 91,644.12

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Solution

The fourth proportional to 159,622.76, 220,279.34 and 91,644.12 is: 126,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,622.76 : 220,279.34 = 91,644.12 : x
  2. Step 2: Convert to fraction form
    159,622.76/220,279.34 = 91,644.12/x
  3. Step 3: Cross multiply
    159,622.76x = 220,279.34 × 91,644.12
  4. Step 4: Simplify right side
    159,622.76x = 20,187,305,156.05
  5. Step 5: Solve for x
    x = 20,187,305,156.05/159,622.76
  6. Step 6: Final answer
    x = 126,468.84

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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.