Home / 81,282-107,851

Finding the Third Proportional to 81,282 and 107,851

Calculator

Solution

The third proportional to 81,282 and 107,851 is: 143,104.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,282 : 107,851 = 107,851 : x
  2. Step 2: Convert to fraction form
    81,282/107,851 = 107,851/x
  3. Step 3: Cross multiply
    81,282x = 107,851 × 107,851
  4. Step 4: Simplify right side
    81,282x = 11,631,838,201
  5. Step 5: Solve for x
    x = 11,631,838,201/81,282
  6. Step 6: Final answer
    x = 143,104.72

Related Problems

Find third proportional to 40,641 and 53,925.50
Half scale
Find third proportional to 162,564 and 215,702
Double scale
Find third proportional to 81,284 and 107,854
Similar ratio
Find third proportional to 121,923 and 161,776.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.