Home / 67,039-138,717

Finding the Third Proportional to 67,039 and 138,717

Calculator

Solution

The third proportional to 67,039 and 138,717 is: 287,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,039 : 138,717 = 138,717 : x
  2. Step 2: Convert to fraction form
    67,039/138,717 = 138,717/x
  3. Step 3: Cross multiply
    67,039x = 138,717 × 138,717
  4. Step 4: Simplify right side
    67,039x = 19,242,406,089
  5. Step 5: Solve for x
    x = 19,242,406,089/67,039
  6. Step 6: Final answer
    x = 287,033.01

Related Problems

Find third proportional to 33,519.50 and 69,358.50
Half scale
Find third proportional to 134,078 and 277,434
Double scale
Find third proportional to 67,041 and 138,721
Similar ratio
Find third proportional to 100,558.50 and 208,075.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.