Home / 64,290-131,711

Finding the Third Proportional to 64,290 and 131,711

Calculator

Solution

The third proportional to 64,290 and 131,711 is: 269,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,290 : 131,711 = 131,711 : x
  2. Step 2: Convert to fraction form
    64,290/131,711 = 131,711/x
  3. Step 3: Cross multiply
    64,290x = 131,711 × 131,711
  4. Step 4: Simplify right side
    64,290x = 17,347,787,521
  5. Step 5: Solve for x
    x = 17,347,787,521/64,290
  6. Step 6: Final answer
    x = 269,836.48

Related Problems

Find third proportional to 32,145 and 65,855.50
Half scale
Find third proportional to 128,580 and 263,422
Double scale
Find third proportional to 64,292 and 131,715
Similar ratio
Find third proportional to 96,435 and 197,566.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.