Home / 138,648-198,124

Finding the Third Proportional to 138,648 and 198,124

Calculator

Solution

The third proportional to 138,648 and 198,124 is: 283,113.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,648 : 198,124 = 198,124 : x
  2. Step 2: Convert to fraction form
    138,648/198,124 = 198,124/x
  3. Step 3: Cross multiply
    138,648x = 198,124 × 198,124
  4. Step 4: Simplify right side
    138,648x = 39,253,119,376
  5. Step 5: Solve for x
    x = 39,253,119,376/138,648
  6. Step 6: Final answer
    x = 283,113.49

Related Problems

Find third proportional to 69,324 and 99,062
Half scale
Find third proportional to 277,296 and 396,248
Double scale
Find third proportional to 138,650 and 198,127
Similar ratio
Find third proportional to 207,972 and 297,186
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.