Home / 108,420-172,656

Finding the Third Proportional to 108,420 and 172,656

Calculator

Solution

The third proportional to 108,420 and 172,656 is: 274,950.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,420 : 172,656 = 172,656 : x
  2. Step 2: Convert to fraction form
    108,420/172,656 = 172,656/x
  3. Step 3: Cross multiply
    108,420x = 172,656 × 172,656
  4. Step 4: Simplify right side
    108,420x = 29,810,094,336
  5. Step 5: Solve for x
    x = 29,810,094,336/108,420
  6. Step 6: Final answer
    x = 274,950.14

Related Problems

Find third proportional to 54,210 and 86,328
Half scale
Find third proportional to 216,840 and 345,312
Double scale
Find third proportional to 108,422 and 172,659
Similar ratio
Find third proportional to 162,630 and 258,984
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.