Home / 77,878-122,008

Finding the Third Proportional to 77,878 and 122,008

Calculator

Solution

The third proportional to 77,878 and 122,008 is: 191,144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,878 : 122,008 = 122,008 : x
  2. Step 2: Convert to fraction form
    77,878/122,008 = 122,008/x
  3. Step 3: Cross multiply
    77,878x = 122,008 × 122,008
  4. Step 4: Simplify right side
    77,878x = 14,885,952,064
  5. Step 5: Solve for x
    x = 14,885,952,064/77,878
  6. Step 6: Final answer
    x = 191,144.51

Related Problems

Find third proportional to 38,939 and 61,004
Half scale
Find third proportional to 155,756 and 244,016
Double scale
Find third proportional to 77,880 and 122,011
Similar ratio
Find third proportional to 116,817 and 183,012
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.