Home / 90,759-126,945

Finding the Third Proportional to 90,759 and 126,945

Calculator

Solution

The third proportional to 90,759 and 126,945 is: 177,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,759 : 126,945 = 126,945 : x
  2. Step 2: Convert to fraction form
    90,759/126,945 = 126,945/x
  3. Step 3: Cross multiply
    90,759x = 126,945 × 126,945
  4. Step 4: Simplify right side
    90,759x = 16,115,033,025
  5. Step 5: Solve for x
    x = 16,115,033,025/90,759
  6. Step 6: Final answer
    x = 177,558.51

Related Problems

Find third proportional to 45,379.50 and 63,472.50
Half scale
Find third proportional to 181,518 and 253,890
Double scale
Find third proportional to 90,761 and 126,948
Similar ratio
Find third proportional to 136,138.50 and 190,417.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.