Home / 66,172-145,448

Finding the Third Proportional to 66,172 and 145,448

Calculator

Solution

The third proportional to 66,172 and 145,448 is: 319,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,172 : 145,448 = 145,448 : x
  2. Step 2: Convert to fraction form
    66,172/145,448 = 145,448/x
  3. Step 3: Cross multiply
    66,172x = 145,448 × 145,448
  4. Step 4: Simplify right side
    66,172x = 21,155,120,704
  5. Step 5: Solve for x
    x = 21,155,120,704/66,172
  6. Step 6: Final answer
    x = 319,698.98

Related Problems

Find third proportional to 33,086 and 72,724
Half scale
Find third proportional to 132,344 and 290,896
Double scale
Find third proportional to 66,174 and 145,452
Similar ratio
Find third proportional to 99,258 and 218,172
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.