Home / 138,676.50-198,171

Finding the Third Proportional to 138,676.50 and 198,171

Calculator

Solution

The third proportional to 138,676.50 and 198,171 is: 283,189.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,676.50 : 198,171 = 198,171 : x
  2. Step 2: Convert to fraction form
    138,676.50/198,171 = 198,171/x
  3. Step 3: Cross multiply
    138,676.50x = 198,171 × 198,171
  4. Step 4: Simplify right side
    138,676.50x = 39,271,745,241
  5. Step 5: Solve for x
    x = 39,271,745,241/138,676.50
  6. Step 6: Final answer
    x = 283,189.62

Related Problems

Find third proportional to 69,338.25 and 99,085.50
Half scale
Find third proportional to 277,353 and 396,342
Double scale
Find third proportional to 138,679 and 198,174
Similar ratio
Find third proportional to 208,014.75 and 297,256.50
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.