Home / 71,640-155,968

Finding the Third Proportional to 71,640 and 155,968

Calculator

Solution

The third proportional to 71,640 and 155,968 is: 339,559.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,640 : 155,968 = 155,968 : x
  2. Step 2: Convert to fraction form
    71,640/155,968 = 155,968/x
  3. Step 3: Cross multiply
    71,640x = 155,968 × 155,968
  4. Step 4: Simplify right side
    71,640x = 24,326,017,024
  5. Step 5: Solve for x
    x = 24,326,017,024/71,640
  6. Step 6: Final answer
    x = 339,559.14

Related Problems

Find third proportional to 35,820 and 77,984
Half scale
Find third proportional to 143,280 and 311,936
Double scale
Find third proportional to 71,642 and 155,972
Similar ratio
Find third proportional to 107,460 and 233,952
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.