Home / 64,698-140,787

Finding the Third Proportional to 64,698 and 140,787

Calculator

Solution

The third proportional to 64,698 and 140,787 is: 306,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,698 : 140,787 = 140,787 : x
  2. Step 2: Convert to fraction form
    64,698/140,787 = 140,787/x
  3. Step 3: Cross multiply
    64,698x = 140,787 × 140,787
  4. Step 4: Simplify right side
    64,698x = 19,820,979,369
  5. Step 5: Solve for x
    x = 19,820,979,369/64,698
  6. Step 6: Final answer
    x = 306,361.55

Related Problems

Find third proportional to 32,349 and 70,393.50
Half scale
Find third proportional to 129,396 and 281,574
Double scale
Find third proportional to 64,700 and 140,791
Similar ratio
Find third proportional to 97,047 and 211,180.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.