Home / 77,640-117,198

Finding the Third Proportional to 77,640 and 117,198

Calculator

Solution

The third proportional to 77,640 and 117,198 is: 176,911.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,640 : 117,198 = 117,198 : x
  2. Step 2: Convert to fraction form
    77,640/117,198 = 117,198/x
  3. Step 3: Cross multiply
    77,640x = 117,198 × 117,198
  4. Step 4: Simplify right side
    77,640x = 13,735,371,204
  5. Step 5: Solve for x
    x = 13,735,371,204/77,640
  6. Step 6: Final answer
    x = 176,911.01

Related Problems

Find third proportional to 38,820 and 58,599
Half scale
Find third proportional to 155,280 and 234,396
Double scale
Find third proportional to 77,642 and 117,201
Similar ratio
Find third proportional to 116,460 and 175,797
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.