Home / 121,514-161,751

Finding the Third Proportional to 121,514 and 161,751

Calculator

Solution

The third proportional to 121,514 and 161,751 is: 215,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,514 : 161,751 = 161,751 : x
  2. Step 2: Convert to fraction form
    121,514/161,751 = 161,751/x
  3. Step 3: Cross multiply
    121,514x = 161,751 × 161,751
  4. Step 4: Simplify right side
    121,514x = 26,163,386,001
  5. Step 5: Solve for x
    x = 26,163,386,001/121,514
  6. Step 6: Final answer
    x = 215,311.70

Related Problems

Find third proportional to 60,757 and 80,875.50
Half scale
Find third proportional to 243,028 and 323,502
Double scale
Find third proportional to 121,516 and 161,754
Similar ratio
Find third proportional to 182,271 and 242,626.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.