Home / 70,530-109,278

Finding the Third Proportional to 70,530 and 109,278

Calculator

Solution

The third proportional to 70,530 and 109,278 is: 169,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,530 : 109,278 = 109,278 : x
  2. Step 2: Convert to fraction form
    70,530/109,278 = 109,278/x
  3. Step 3: Cross multiply
    70,530x = 109,278 × 109,278
  4. Step 4: Simplify right side
    70,530x = 11,941,681,284
  5. Step 5: Solve for x
    x = 11,941,681,284/70,530
  6. Step 6: Final answer
    x = 169,313.50

Related Problems

Find third proportional to 35,265 and 54,639
Half scale
Find third proportional to 141,060 and 218,556
Double scale
Find third proportional to 70,532 and 109,281
Similar ratio
Find third proportional to 105,795 and 163,917
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.