Home / 89,811-135,378

Finding the Third Proportional to 89,811 and 135,378

Calculator

Solution

The third proportional to 89,811 and 135,378 is: 204,064.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,811 : 135,378 = 135,378 : x
  2. Step 2: Convert to fraction form
    89,811/135,378 = 135,378/x
  3. Step 3: Cross multiply
    89,811x = 135,378 × 135,378
  4. Step 4: Simplify right side
    89,811x = 18,327,202,884
  5. Step 5: Solve for x
    x = 18,327,202,884/89,811
  6. Step 6: Final answer
    x = 204,064.12

Related Problems

Find third proportional to 44,905.50 and 67,689
Half scale
Find third proportional to 179,622 and 270,756
Double scale
Find third proportional to 89,813 and 135,381
Similar ratio
Find third proportional to 134,716.50 and 203,067
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.