Home / 128,694-196,869

Finding the Third Proportional to 128,694 and 196,869

Calculator

Solution

The third proportional to 128,694 and 196,869 is: 301,159.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,694 : 196,869 = 196,869 : x
  2. Step 2: Convert to fraction form
    128,694/196,869 = 196,869/x
  3. Step 3: Cross multiply
    128,694x = 196,869 × 196,869
  4. Step 4: Simplify right side
    128,694x = 38,757,403,161
  5. Step 5: Solve for x
    x = 38,757,403,161/128,694
  6. Step 6: Final answer
    x = 301,159.36

Related Problems

Find third proportional to 64,347 and 98,434.50
Half scale
Find third proportional to 257,388 and 393,738
Double scale
Find third proportional to 128,696 and 196,872
Similar ratio
Find third proportional to 193,041 and 295,303.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.