Home / 81,218-122,043

Finding the Third Proportional to 81,218 and 122,043

Calculator

Solution

The third proportional to 81,218 and 122,043 is: 183,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,218 : 122,043 = 122,043 : x
  2. Step 2: Convert to fraction form
    81,218/122,043 = 122,043/x
  3. Step 3: Cross multiply
    81,218x = 122,043 × 122,043
  4. Step 4: Simplify right side
    81,218x = 14,894,493,849
  5. Step 5: Solve for x
    x = 14,894,493,849/81,218
  6. Step 6: Final answer
    x = 183,389.07

Related Problems

Find third proportional to 40,609 and 61,021.50
Half scale
Find third proportional to 162,436 and 244,086
Double scale
Find third proportional to 81,220 and 122,046
Similar ratio
Find third proportional to 121,827 and 183,064.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.