Home / 81,963-122,490

Finding the Third Proportional to 81,963 and 122,490

Calculator

Solution

The third proportional to 81,963 and 122,490 is: 183,055.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,963 : 122,490 = 122,490 : x
  2. Step 2: Convert to fraction form
    81,963/122,490 = 122,490/x
  3. Step 3: Cross multiply
    81,963x = 122,490 × 122,490
  4. Step 4: Simplify right side
    81,963x = 15,003,800,100
  5. Step 5: Solve for x
    x = 15,003,800,100/81,963
  6. Step 6: Final answer
    x = 183,055.77

Related Problems

Find third proportional to 40,981.50 and 61,245
Half scale
Find third proportional to 163,926 and 244,980
Double scale
Find third proportional to 81,965 and 122,493
Similar ratio
Find third proportional to 122,944.50 and 183,735
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.