Home / 128,853-196,612

Finding the Third Proportional to 128,853 and 196,612

Calculator

Solution

The third proportional to 128,853 and 196,612 is: 300,002.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,853 : 196,612 = 196,612 : x
  2. Step 2: Convert to fraction form
    128,853/196,612 = 196,612/x
  3. Step 3: Cross multiply
    128,853x = 196,612 × 196,612
  4. Step 4: Simplify right side
    128,853x = 38,656,278,544
  5. Step 5: Solve for x
    x = 38,656,278,544/128,853
  6. Step 6: Final answer
    x = 300,002.94

Related Problems

Find third proportional to 64,426.50 and 98,306
Half scale
Find third proportional to 257,706 and 393,224
Double scale
Find third proportional to 128,855 and 196,615
Similar ratio
Find third proportional to 193,279.50 and 294,918
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.