Home / 61,640-131,223

Finding the Third Proportional to 61,640 and 131,223

Calculator

Solution

The third proportional to 61,640 and 131,223 is: 279,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,640 : 131,223 = 131,223 : x
  2. Step 2: Convert to fraction form
    61,640/131,223 = 131,223/x
  3. Step 3: Cross multiply
    61,640x = 131,223 × 131,223
  4. Step 4: Simplify right side
    61,640x = 17,219,475,729
  5. Step 5: Solve for x
    x = 17,219,475,729/61,640
  6. Step 6: Final answer
    x = 279,355.54

Related Problems

Find third proportional to 30,820 and 65,611.50
Half scale
Find third proportional to 123,280 and 262,446
Double scale
Find third proportional to 61,642 and 131,227
Similar ratio
Find third proportional to 92,460 and 196,834.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.