Home / 60.75-135

Finding the Third Proportional to 60.75 and 135

Calculator

Solution

The third proportional to 60.75 and 135 is: 300

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.75 : 135 = 135 : x
  2. Step 2: Convert to fraction form
    60.75/135 = 135/x
  3. Step 3: Cross multiply
    60.75x = 135 × 135
  4. Step 4: Simplify right side
    60.75x = 18,225
  5. Step 5: Solve for x
    x = 18,225/60.75
  6. Step 6: Final answer
    x = 300

Related Problems

Find third proportional to 30.38 and 67.50
Half scale
Find third proportional to 121.50 and 270
Double scale
Find third proportional to 63 and 139
Similar ratio
Find third proportional to 91.13 and 202.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.