Home / 128,567-196,114

Finding the Third Proportional to 128,567 and 196,114

Calculator

Solution

The third proportional to 128,567 and 196,114 is: 299,149.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,567 : 196,114 = 196,114 : x
  2. Step 2: Convert to fraction form
    128,567/196,114 = 196,114/x
  3. Step 3: Cross multiply
    128,567x = 196,114 × 196,114
  4. Step 4: Simplify right side
    128,567x = 38,460,700,996
  5. Step 5: Solve for x
    x = 38,460,700,996/128,567
  6. Step 6: Final answer
    x = 299,149.09

Related Problems

Find third proportional to 64,283.50 and 98,057
Half scale
Find third proportional to 257,134 and 392,228
Double scale
Find third proportional to 128,569 and 196,117
Similar ratio
Find third proportional to 192,850.50 and 294,171
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.