Home / 64,988-141,720

Finding the Third Proportional to 64,988 and 141,720

Calculator

Solution

The third proportional to 64,988 and 141,720 is: 309,050.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,988 : 141,720 = 141,720 : x
  2. Step 2: Convert to fraction form
    64,988/141,720 = 141,720/x
  3. Step 3: Cross multiply
    64,988x = 141,720 × 141,720
  4. Step 4: Simplify right side
    64,988x = 20,084,558,400
  5. Step 5: Solve for x
    x = 20,084,558,400/64,988
  6. Step 6: Final answer
    x = 309,050.26

Related Problems

Find third proportional to 32,494 and 70,860
Half scale
Find third proportional to 129,976 and 283,440
Double scale
Find third proportional to 64,990 and 141,724
Similar ratio
Find third proportional to 97,482 and 212,580
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.