Home / 90,642-195,840

Finding the Third Proportional to 90,642 and 195,840

Calculator

Solution

The third proportional to 90,642 and 195,840 is: 423,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,642 : 195,840 = 195,840 : x
  2. Step 2: Convert to fraction form
    90,642/195,840 = 195,840/x
  3. Step 3: Cross multiply
    90,642x = 195,840 × 195,840
  4. Step 4: Simplify right side
    90,642x = 38,353,305,600
  5. Step 5: Solve for x
    x = 38,353,305,600/90,642
  6. Step 6: Final answer
    x = 423,129.52

Related Problems

Find third proportional to 45,321 and 97,920
Half scale
Find third proportional to 181,284 and 391,680
Double scale
Find third proportional to 90,644 and 195,844
Similar ratio
Find third proportional to 135,963 and 293,760
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.