Home / 66,864-134,820

Finding the Third Proportional to 66,864 and 134,820

Calculator

Solution

The third proportional to 66,864 and 134,820 is: 271,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864 : 134,820 = 134,820 : x
  2. Step 2: Convert to fraction form
    66,864/134,820 = 134,820/x
  3. Step 3: Cross multiply
    66,864x = 134,820 × 134,820
  4. Step 4: Simplify right side
    66,864x = 18,176,432,400
  5. Step 5: Solve for x
    x = 18,176,432,400/66,864
  6. Step 6: Final answer
    x = 271,841.83

Related Problems

Find third proportional to 33,432 and 67,410
Half scale
Find third proportional to 133,728 and 269,640
Double scale
Find third proportional to 66,866 and 134,824
Similar ratio
Find third proportional to 100,296 and 202,230
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.