Home / 81,459-116,721

Finding the Third Proportional to 81,459 and 116,721

Calculator

Solution

The third proportional to 81,459 and 116,721 is: 167,247.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,459 : 116,721 = 116,721 : x
  2. Step 2: Convert to fraction form
    81,459/116,721 = 116,721/x
  3. Step 3: Cross multiply
    81,459x = 116,721 × 116,721
  4. Step 4: Simplify right side
    81,459x = 13,623,791,841
  5. Step 5: Solve for x
    x = 13,623,791,841/81,459
  6. Step 6: Final answer
    x = 167,247.23

Related Problems

Find third proportional to 40,729.50 and 58,360.50
Half scale
Find third proportional to 162,918 and 233,442
Double scale
Find third proportional to 81,461 and 116,724
Similar ratio
Find third proportional to 122,188.50 and 175,081.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.