Home / 68,904-148,820

Finding the Third Proportional to 68,904 and 148,820

Calculator

Solution

The third proportional to 68,904 and 148,820 is: 321,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,904 : 148,820 = 148,820 : x
  2. Step 2: Convert to fraction form
    68,904/148,820 = 148,820/x
  3. Step 3: Cross multiply
    68,904x = 148,820 × 148,820
  4. Step 4: Simplify right side
    68,904x = 22,147,392,400
  5. Step 5: Solve for x
    x = 22,147,392,400/68,904
  6. Step 6: Final answer
    x = 321,423.90

Related Problems

Find third proportional to 34,452 and 74,410
Half scale
Find third proportional to 137,808 and 297,640
Double scale
Find third proportional to 68,906 and 148,824
Similar ratio
Find third proportional to 103,356 and 223,230
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.