Home / 69,872-147,628

Finding the Third Proportional to 69,872 and 147,628

Calculator

Solution

The third proportional to 69,872 and 147,628 is: 311,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,872 : 147,628 = 147,628 : x
  2. Step 2: Convert to fraction form
    69,872/147,628 = 147,628/x
  3. Step 3: Cross multiply
    69,872x = 147,628 × 147,628
  4. Step 4: Simplify right side
    69,872x = 21,794,026,384
  5. Step 5: Solve for x
    x = 21,794,026,384/69,872
  6. Step 6: Final answer
    x = 311,913.59

Related Problems

Find third proportional to 34,936 and 73,814
Half scale
Find third proportional to 139,744 and 295,256
Double scale
Find third proportional to 69,874 and 147,632
Similar ratio
Find third proportional to 104,808 and 221,442
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.