Home / 91-159

Finding the Third Proportional to 91 and 159

Calculator

Solution

The third proportional to 91 and 159 is: 277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91 : 159 = 159 : x
  2. Step 2: Convert to fraction form
    91/159 = 159/x
  3. Step 3: Cross multiply
    91x = 159 × 159
  4. Step 4: Simplify right side
    91x = 25,281
  5. Step 5: Solve for x
    x = 25,281/91
  6. Step 6: Final answer
    x = 277.81

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.