Home / 134.75-143.75

Finding the Third Proportional to 134.75 and 143.75

Calculator

Solution

The third proportional to 134.75 and 143.75 is: 153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.75 : 143.75 = 143.75 : x
  2. Step 2: Convert to fraction form
    134.75/143.75 = 143.75/x
  3. Step 3: Cross multiply
    134.75x = 143.75 × 143.75
  4. Step 4: Simplify right side
    134.75x = 20,664.06
  5. Step 5: Solve for x
    x = 20,664.06/134.75
  6. Step 6: Final answer
    x = 153.35

Related Problems

Find third proportional to 67.38 and 71.88
Half scale
Find third proportional to 269.50 and 287.50
Double scale
Find third proportional to 137 and 146
Similar ratio
Find third proportional to 202.13 and 215.63
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.