Home / 66,685-103,187

Finding the Third Proportional to 66,685 and 103,187

Calculator

Solution

The third proportional to 66,685 and 103,187 is: 159,669.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,685 : 103,187 = 103,187 : x
  2. Step 2: Convert to fraction form
    66,685/103,187 = 103,187/x
  3. Step 3: Cross multiply
    66,685x = 103,187 × 103,187
  4. Step 4: Simplify right side
    66,685x = 10,647,556,969
  5. Step 5: Solve for x
    x = 10,647,556,969/66,685
  6. Step 6: Final answer
    x = 159,669.45

Related Problems

Find third proportional to 33,342.50 and 51,593.50
Half scale
Find third proportional to 133,370 and 206,374
Double scale
Find third proportional to 66,687 and 103,190
Similar ratio
Find third proportional to 100,027.50 and 154,780.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.