Home / 118,261-172,990

Finding the Third Proportional to 118,261 and 172,990

Calculator

Solution

The third proportional to 118,261 and 172,990 is: 253,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,261 : 172,990 = 172,990 : x
  2. Step 2: Convert to fraction form
    118,261/172,990 = 172,990/x
  3. Step 3: Cross multiply
    118,261x = 172,990 × 172,990
  4. Step 4: Simplify right side
    118,261x = 29,925,540,100
  5. Step 5: Solve for x
    x = 29,925,540,100/118,261
  6. Step 6: Final answer
    x = 253,046.57

Related Problems

Find third proportional to 59,130.50 and 86,495
Half scale
Find third proportional to 236,522 and 345,980
Double scale
Find third proportional to 118,263 and 172,993
Similar ratio
Find third proportional to 177,391.50 and 259,485
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.