Home / 66,838-99,930

Finding the Third Proportional to 66,838 and 99,930

Calculator

Solution

The third proportional to 66,838 and 99,930 is: 149,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,838 : 99,930 = 99,930 : x
  2. Step 2: Convert to fraction form
    66,838/99,930 = 99,930/x
  3. Step 3: Cross multiply
    66,838x = 99,930 × 99,930
  4. Step 4: Simplify right side
    66,838x = 9,986,004,900
  5. Step 5: Solve for x
    x = 9,986,004,900/66,838
  6. Step 6: Final answer
    x = 149,406.10

Related Problems

Find third proportional to 33,419 and 49,965
Half scale
Find third proportional to 133,676 and 199,860
Double scale
Find third proportional to 66,840 and 99,933
Similar ratio
Find third proportional to 100,257 and 149,895
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.