Home / 70,392-143,640

Finding the Third Proportional to 70,392 and 143,640

Calculator

Solution

The third proportional to 70,392 and 143,640 is: 293,107.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,392 : 143,640 = 143,640 : x
  2. Step 2: Convert to fraction form
    70,392/143,640 = 143,640/x
  3. Step 3: Cross multiply
    70,392x = 143,640 × 143,640
  4. Step 4: Simplify right side
    70,392x = 20,632,449,600
  5. Step 5: Solve for x
    x = 20,632,449,600/70,392
  6. Step 6: Final answer
    x = 293,107.88

Related Problems

Find third proportional to 35,196 and 71,820
Half scale
Find third proportional to 140,784 and 287,280
Double scale
Find third proportional to 70,394 and 143,644
Similar ratio
Find third proportional to 105,588 and 215,460
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.