Home / 70,708-98,905

Finding the Third Proportional to 70,708 and 98,905

Calculator

Solution

The third proportional to 70,708 and 98,905 is: 138,346.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,708 : 98,905 = 98,905 : x
  2. Step 2: Convert to fraction form
    70,708/98,905 = 98,905/x
  3. Step 3: Cross multiply
    70,708x = 98,905 × 98,905
  4. Step 4: Simplify right side
    70,708x = 9,782,199,025
  5. Step 5: Solve for x
    x = 9,782,199,025/70,708
  6. Step 6: Final answer
    x = 138,346.43

Related Problems

Find third proportional to 35,354 and 49,452.50
Half scale
Find third proportional to 141,416 and 197,810
Double scale
Find third proportional to 70,710 and 98,908
Similar ratio
Find third proportional to 106,062 and 148,357.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.