Home / 115,235-172,856

Finding the Third Proportional to 115,235 and 172,856

Calculator

Solution

The third proportional to 115,235 and 172,856 is: 259,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,235 : 172,856 = 172,856 : x
  2. Step 2: Convert to fraction form
    115,235/172,856 = 172,856/x
  3. Step 3: Cross multiply
    115,235x = 172,856 × 172,856
  4. Step 4: Simplify right side
    115,235x = 29,879,196,736
  5. Step 5: Solve for x
    x = 29,879,196,736/115,235
  6. Step 6: Final answer
    x = 259,289.25

Related Problems

Find third proportional to 57,617.50 and 86,428
Half scale
Find third proportional to 230,470 and 345,712
Double scale
Find third proportional to 115,237 and 172,859
Similar ratio
Find third proportional to 172,852.50 and 259,284
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.