Home / 81,891-173,664

Finding the Third Proportional to 81,891 and 173,664

Calculator

Solution

The third proportional to 81,891 and 173,664 is: 368,284.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,891 : 173,664 = 173,664 : x
  2. Step 2: Convert to fraction form
    81,891/173,664 = 173,664/x
  3. Step 3: Cross multiply
    81,891x = 173,664 × 173,664
  4. Step 4: Simplify right side
    81,891x = 30,159,184,896
  5. Step 5: Solve for x
    x = 30,159,184,896/81,891
  6. Step 6: Final answer
    x = 368,284.49

Related Problems

Find third proportional to 40,945.50 and 86,832
Half scale
Find third proportional to 163,782 and 347,328
Double scale
Find third proportional to 81,893 and 173,668
Similar ratio
Find third proportional to 122,836.50 and 260,496
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.