Home / 54,471-117,990

Finding the Third Proportional to 54,471 and 117,990

Calculator

Solution

The third proportional to 54,471 and 117,990 is: 255,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,471 : 117,990 = 117,990 : x
  2. Step 2: Convert to fraction form
    54,471/117,990 = 117,990/x
  3. Step 3: Cross multiply
    54,471x = 117,990 × 117,990
  4. Step 4: Simplify right side
    54,471x = 13,921,640,100
  5. Step 5: Solve for x
    x = 13,921,640,100/54,471
  6. Step 6: Final answer
    x = 255,578.93

Related Problems

Find third proportional to 27,235.50 and 58,995
Half scale
Find third proportional to 108,942 and 235,980
Double scale
Find third proportional to 54,473 and 117,994
Similar ratio
Find third proportional to 81,706.50 and 176,985
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.