Home / 66,924-139,394

Finding the Third Proportional to 66,924 and 139,394

Calculator

Solution

The third proportional to 66,924 and 139,394 is: 290,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,924 : 139,394 = 139,394 : x
  2. Step 2: Convert to fraction form
    66,924/139,394 = 139,394/x
  3. Step 3: Cross multiply
    66,924x = 139,394 × 139,394
  4. Step 4: Simplify right side
    66,924x = 19,430,687,236
  5. Step 5: Solve for x
    x = 19,430,687,236/66,924
  6. Step 6: Final answer
    x = 290,339.60

Related Problems

Find third proportional to 33,462 and 69,697
Half scale
Find third proportional to 133,848 and 278,788
Double scale
Find third proportional to 66,926 and 139,398
Similar ratio
Find third proportional to 100,386 and 209,091
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.