Home / 60-142

Finding the Third Proportional to 60 and 142

Calculator

Solution

The third proportional to 60 and 142 is: 336.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60 : 142 = 142 : x
  2. Step 2: Convert to fraction form
    60/142 = 142/x
  3. Step 3: Cross multiply
    60x = 142 × 142
  4. Step 4: Simplify right side
    60x = 20,164
  5. Step 5: Solve for x
    x = 20,164/60
  6. Step 6: Final answer
    x = 336.07

Related Problems

Find third proportional to 30 and 71
Half scale
Find third proportional to 120 and 284
Double scale
Find third proportional to 62 and 147
Similar ratio
Find third proportional to 90 and 213
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.