Home / 76,530-102,645

Finding the Third Proportional to 76,530 and 102,645

Calculator

Solution

The third proportional to 76,530 and 102,645 is: 137,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,530 : 102,645 = 102,645 : x
  2. Step 2: Convert to fraction form
    76,530/102,645 = 102,645/x
  3. Step 3: Cross multiply
    76,530x = 102,645 × 102,645
  4. Step 4: Simplify right side
    76,530x = 10,535,996,025
  5. Step 5: Solve for x
    x = 10,535,996,025/76,530
  6. Step 6: Final answer
    x = 137,671.45

Related Problems

Find third proportional to 38,265 and 51,322.50
Half scale
Find third proportional to 153,060 and 205,290
Double scale
Find third proportional to 76,532 and 102,648
Similar ratio
Find third proportional to 114,795 and 153,967.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.