Home / 66,108-145,338

Finding the Third Proportional to 66,108 and 145,338

Calculator

Solution

The third proportional to 66,108 and 145,338 is: 319,524.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,108 : 145,338 = 145,338 : x
  2. Step 2: Convert to fraction form
    66,108/145,338 = 145,338/x
  3. Step 3: Cross multiply
    66,108x = 145,338 × 145,338
  4. Step 4: Simplify right side
    66,108x = 21,123,134,244
  5. Step 5: Solve for x
    x = 21,123,134,244/66,108
  6. Step 6: Final answer
    x = 319,524.63

Related Problems

Find third proportional to 33,054 and 72,669
Half scale
Find third proportional to 132,216 and 290,676
Double scale
Find third proportional to 66,110 and 145,342
Similar ratio
Find third proportional to 99,162 and 218,007
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.