Home / 159,550.28-220,189.78-91,589.26

Finding the Fourth Proportional to 159,550.28, 220,189.78 and 91,589.26

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Solution

The fourth proportional to 159,550.28, 220,189.78 and 91,589.26 is: 126,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,550.28 : 220,189.78 = 91,589.26 : x
  2. Step 2: Convert to fraction form
    159,550.28/220,189.78 = 91,589.26/x
  3. Step 3: Cross multiply
    159,550.28x = 220,189.78 × 91,589.26
  4. Step 4: Simplify right side
    159,550.28x = 20,167,019,009.76
  5. Step 5: Solve for x
    x = 20,167,019,009.76/159,550.28
  6. Step 6: Final answer
    x = 126,399.15

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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.