Home / 64,520-139,245

Finding the Third Proportional to 64,520 and 139,245

Calculator

Solution

The third proportional to 64,520 and 139,245 is: 300,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,520 : 139,245 = 139,245 : x
  2. Step 2: Convert to fraction form
    64,520/139,245 = 139,245/x
  3. Step 3: Cross multiply
    64,520x = 139,245 × 139,245
  4. Step 4: Simplify right side
    64,520x = 19,389,170,025
  5. Step 5: Solve for x
    x = 19,389,170,025/64,520
  6. Step 6: Final answer
    x = 300,514.10

Related Problems

Find third proportional to 32,260 and 69,622.50
Half scale
Find third proportional to 129,040 and 278,490
Double scale
Find third proportional to 64,522 and 139,249
Similar ratio
Find third proportional to 96,780 and 208,867.50
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.