Home / 55,639-123,718

Finding the Third Proportional to 55,639 and 123,718

Calculator

Solution

The third proportional to 55,639 and 123,718 is: 275,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,639 : 123,718 = 123,718 : x
  2. Step 2: Convert to fraction form
    55,639/123,718 = 123,718/x
  3. Step 3: Cross multiply
    55,639x = 123,718 × 123,718
  4. Step 4: Simplify right side
    55,639x = 15,306,143,524
  5. Step 5: Solve for x
    x = 15,306,143,524/55,639
  6. Step 6: Final answer
    x = 275,097.39

Related Problems

Find third proportional to 27,819.50 and 61,859
Half scale
Find third proportional to 111,278 and 247,436
Double scale
Find third proportional to 55,641 and 123,722
Similar ratio
Find third proportional to 83,458.50 and 185,577
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.