Home / 90,626-138,325

Finding the Third Proportional to 90,626 and 138,325

Calculator

Solution

The third proportional to 90,626 and 138,325 is: 211,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,626 : 138,325 = 138,325 : x
  2. Step 2: Convert to fraction form
    90,626/138,325 = 138,325/x
  3. Step 3: Cross multiply
    90,626x = 138,325 × 138,325
  4. Step 4: Simplify right side
    90,626x = 19,133,805,625
  5. Step 5: Solve for x
    x = 19,133,805,625/90,626
  6. Step 6: Final answer
    x = 211,129.32

Related Problems

Find third proportional to 45,313 and 69,162.50
Half scale
Find third proportional to 181,252 and 276,650
Double scale
Find third proportional to 90,628 and 138,328
Similar ratio
Find third proportional to 135,939 and 207,487.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.