Home / 89.25-135

Finding the Third Proportional to 89.25 and 135

Calculator

Solution

The third proportional to 89.25 and 135 is: 204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.25 : 135 = 135 : x
  2. Step 2: Convert to fraction form
    89.25/135 = 135/x
  3. Step 3: Cross multiply
    89.25x = 135 × 135
  4. Step 4: Simplify right side
    89.25x = 18,225
  5. Step 5: Solve for x
    x = 18,225/89.25
  6. Step 6: Final answer
    x = 204.20

Related Problems

Find third proportional to 44.63 and 67.50
Half scale
Find third proportional to 178.50 and 270
Double scale
Find third proportional to 91 and 138
Similar ratio
Find third proportional to 133.88 and 202.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.