Home / 81,088-121,305

Finding the Third Proportional to 81,088 and 121,305

Calculator

Solution

The third proportional to 81,088 and 121,305 is: 181,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,088 : 121,305 = 121,305 : x
  2. Step 2: Convert to fraction form
    81,088/121,305 = 121,305/x
  3. Step 3: Cross multiply
    81,088x = 121,305 × 121,305
  4. Step 4: Simplify right side
    81,088x = 14,714,903,025
  5. Step 5: Solve for x
    x = 14,714,903,025/81,088
  6. Step 6: Final answer
    x = 181,468.32

Related Problems

Find third proportional to 40,544 and 60,652.50
Half scale
Find third proportional to 162,176 and 242,610
Double scale
Find third proportional to 81,090 and 121,308
Similar ratio
Find third proportional to 121,632 and 181,957.50
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.