Home / 66,376-136,196

Finding the Third Proportional to 66,376 and 136,196

Calculator

Solution

The third proportional to 66,376 and 136,196 is: 279,458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,376 : 136,196 = 136,196 : x
  2. Step 2: Convert to fraction form
    66,376/136,196 = 136,196/x
  3. Step 3: Cross multiply
    66,376x = 136,196 × 136,196
  4. Step 4: Simplify right side
    66,376x = 18,549,350,416
  5. Step 5: Solve for x
    x = 18,549,350,416/66,376
  6. Step 6: Final answer
    x = 279,458.70

Related Problems

Find third proportional to 33,188 and 68,098
Half scale
Find third proportional to 132,752 and 272,392
Double scale
Find third proportional to 66,378 and 136,200
Similar ratio
Find third proportional to 99,564 and 204,294
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.