Home / 61,866-137,947

Finding the Third Proportional to 61,866 and 137,947

Calculator

Solution

The third proportional to 61,866 and 137,947 is: 307,590.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,866 : 137,947 = 137,947 : x
  2. Step 2: Convert to fraction form
    61,866/137,947 = 137,947/x
  3. Step 3: Cross multiply
    61,866x = 137,947 × 137,947
  4. Step 4: Simplify right side
    61,866x = 19,029,374,809
  5. Step 5: Solve for x
    x = 19,029,374,809/61,866
  6. Step 6: Final answer
    x = 307,590.19

Related Problems

Find third proportional to 30,933 and 68,973.50
Half scale
Find third proportional to 123,732 and 275,894
Double scale
Find third proportional to 61,868 and 137,951
Similar ratio
Find third proportional to 92,799 and 206,920.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.