Home / 135,368-199,128

Finding the Third Proportional to 135,368 and 199,128

Calculator

Solution

The third proportional to 135,368 and 199,128 is: 292,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,368 : 199,128 = 199,128 : x
  2. Step 2: Convert to fraction form
    135,368/199,128 = 199,128/x
  3. Step 3: Cross multiply
    135,368x = 199,128 × 199,128
  4. Step 4: Simplify right side
    135,368x = 39,651,960,384
  5. Step 5: Solve for x
    x = 39,651,960,384/135,368
  6. Step 6: Final answer
    x = 292,919.75

Related Problems

Find third proportional to 67,684 and 99,564
Half scale
Find third proportional to 270,736 and 398,256
Double scale
Find third proportional to 135,370 and 199,131
Similar ratio
Find third proportional to 203,052 and 298,692
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.