Home / 126.42-135.84

Finding the Third Proportional to 126.42 and 135.84

Calculator

Solution

The third proportional to 126.42 and 135.84 is: 145.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.42 : 135.84 = 135.84 : x
  2. Step 2: Convert to fraction form
    126.42/135.84 = 135.84/x
  3. Step 3: Cross multiply
    126.42x = 135.84 × 135.84
  4. Step 4: Simplify right side
    126.42x = 18,453.52
  5. Step 5: Solve for x
    x = 18,453.52/126.42
  6. Step 6: Final answer
    x = 145.97

Related Problems

Find third proportional to 63.21 and 67.92
Half scale
Find third proportional to 252.84 and 271.69
Double scale
Find third proportional to 128 and 138
Similar ratio
Find third proportional to 189.63 and 203.77
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.