Home / 159,623.37-220,280.18-91,644.73

Finding the Fourth Proportional to 159,623.37, 220,280.18 and 91,644.73

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Solution

The fourth proportional to 159,623.37, 220,280.18 and 91,644.73 is: 126,469.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,623.37 : 220,280.18 = 91,644.73 : x
  2. Step 2: Convert to fraction form
    159,623.37/220,280.18 = 91,644.73/x
  3. Step 3: Cross multiply
    159,623.37x = 220,280.18 × 91,644.73
  4. Step 4: Simplify right side
    159,623.37x = 20,187,516,955.20
  5. Step 5: Solve for x
    x = 20,187,516,955.20/159,623.37
  6. Step 6: Final answer
    x = 126,469.68

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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.