Home / 66,578-142,948

Finding the Third Proportional to 66,578 and 142,948

Calculator

Solution

The third proportional to 66,578 and 142,948 is: 306,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,578 : 142,948 = 142,948 : x
  2. Step 2: Convert to fraction form
    66,578/142,948 = 142,948/x
  3. Step 3: Cross multiply
    66,578x = 142,948 × 142,948
  4. Step 4: Simplify right side
    66,578x = 20,434,130,704
  5. Step 5: Solve for x
    x = 20,434,130,704/66,578
  6. Step 6: Final answer
    x = 306,920.16

Related Problems

Find third proportional to 33,289 and 71,474
Half scale
Find third proportional to 133,156 and 285,896
Double scale
Find third proportional to 66,580 and 142,952
Similar ratio
Find third proportional to 99,867 and 214,422
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.