Home / 108,721-172,964

Finding the Third Proportional to 108,721 and 172,964

Calculator

Solution

The third proportional to 108,721 and 172,964 is: 275,168.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,721 : 172,964 = 172,964 : x
  2. Step 2: Convert to fraction form
    108,721/172,964 = 172,964/x
  3. Step 3: Cross multiply
    108,721x = 172,964 × 172,964
  4. Step 4: Simplify right side
    108,721x = 29,916,545,296
  5. Step 5: Solve for x
    x = 29,916,545,296/108,721
  6. Step 6: Final answer
    x = 275,168.05

Related Problems

Find third proportional to 54,360.50 and 86,482
Half scale
Find third proportional to 217,442 and 345,928
Double scale
Find third proportional to 108,723 and 172,967
Similar ratio
Find third proportional to 163,081.50 and 259,446
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.