Home / 120,990-192,181.50

Finding the Third Proportional to 120,990 and 192,181.50

Calculator

Solution

The third proportional to 120,990 and 192,181.50 is: 305,262.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,990 : 192,181.50 = 192,181.50 : x
  2. Step 2: Convert to fraction form
    120,990/192,181.50 = 192,181.50/x
  3. Step 3: Cross multiply
    120,990x = 192,181.50 × 192,181.50
  4. Step 4: Simplify right side
    120,990x = 36,933,728,942.25
  5. Step 5: Solve for x
    x = 36,933,728,942.25/120,990
  6. Step 6: Final answer
    x = 305,262.66

Related Problems

Find third proportional to 60,495 and 96,090.75
Half scale
Find third proportional to 241,980 and 384,363
Double scale
Find third proportional to 120,992 and 192,185
Similar ratio
Find third proportional to 181,485 and 288,272.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.