Home / 91,800-135,990

Finding the Third Proportional to 91,800 and 135,990

Calculator

Solution

The third proportional to 91,800 and 135,990 is: 201,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,800 : 135,990 = 135,990 : x
  2. Step 2: Convert to fraction form
    91,800/135,990 = 135,990/x
  3. Step 3: Cross multiply
    91,800x = 135,990 × 135,990
  4. Step 4: Simplify right side
    91,800x = 18,493,280,100
  5. Step 5: Solve for x
    x = 18,493,280,100/91,800
  6. Step 6: Final answer
    x = 201,451.85

Related Problems

Find third proportional to 45,900 and 67,995
Half scale
Find third proportional to 183,600 and 271,980
Double scale
Find third proportional to 91,802 and 135,993
Similar ratio
Find third proportional to 137,700 and 203,985
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.