Home / 66,028-142,578

Finding the Third Proportional to 66,028 and 142,578

Calculator

Solution

The third proportional to 66,028 and 142,578 is: 307,876.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,028 : 142,578 = 142,578 : x
  2. Step 2: Convert to fraction form
    66,028/142,578 = 142,578/x
  3. Step 3: Cross multiply
    66,028x = 142,578 × 142,578
  4. Step 4: Simplify right side
    66,028x = 20,328,486,084
  5. Step 5: Solve for x
    x = 20,328,486,084/66,028
  6. Step 6: Final answer
    x = 307,876.75

Related Problems

Find third proportional to 33,014 and 71,289
Half scale
Find third proportional to 132,056 and 285,156
Double scale
Find third proportional to 66,030 and 142,582
Similar ratio
Find third proportional to 99,042 and 213,867
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.