Home / 138,668-198,154

Finding the Third Proportional to 138,668 and 198,154

Calculator

Solution

The third proportional to 138,668 and 198,154 is: 283,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,668 : 198,154 = 198,154 : x
  2. Step 2: Convert to fraction form
    138,668/198,154 = 198,154/x
  3. Step 3: Cross multiply
    138,668x = 198,154 × 198,154
  4. Step 4: Simplify right side
    138,668x = 39,265,007,716
  5. Step 5: Solve for x
    x = 39,265,007,716/138,668
  6. Step 6: Final answer
    x = 283,158.39

Related Problems

Find third proportional to 69,334 and 99,077
Half scale
Find third proportional to 277,336 and 396,308
Double scale
Find third proportional to 138,670 and 198,157
Similar ratio
Find third proportional to 208,002 and 297,231
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.