Home / 90,132-129,816

Finding the Third Proportional to 90,132 and 129,816

Calculator

Solution

The third proportional to 90,132 and 129,816 is: 186,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,132 : 129,816 = 129,816 : x
  2. Step 2: Convert to fraction form
    90,132/129,816 = 129,816/x
  3. Step 3: Cross multiply
    90,132x = 129,816 × 129,816
  4. Step 4: Simplify right side
    90,132x = 16,852,193,856
  5. Step 5: Solve for x
    x = 16,852,193,856/90,132
  6. Step 6: Final answer
    x = 186,972.37

Related Problems

Find third proportional to 45,066 and 64,908
Half scale
Find third proportional to 180,264 and 259,632
Double scale
Find third proportional to 90,134 and 129,819
Similar ratio
Find third proportional to 135,198 and 194,724
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.