Home / 69,408-98,279

Finding the Third Proportional to 69,408 and 98,279

Calculator

Solution

The third proportional to 69,408 and 98,279 is: 139,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,408 : 98,279 = 98,279 : x
  2. Step 2: Convert to fraction form
    69,408/98,279 = 98,279/x
  3. Step 3: Cross multiply
    69,408x = 98,279 × 98,279
  4. Step 4: Simplify right side
    69,408x = 9,658,761,841
  5. Step 5: Solve for x
    x = 9,658,761,841/69,408
  6. Step 6: Final answer
    x = 139,159.20

Related Problems

Find third proportional to 34,704 and 49,139.50
Half scale
Find third proportional to 138,816 and 196,558
Double scale
Find third proportional to 69,410 and 98,282
Similar ratio
Find third proportional to 104,112 and 147,418.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.