Home / 129,801-189,774

Finding the Third Proportional to 129,801 and 189,774

Calculator

Solution

The third proportional to 129,801 and 189,774 is: 277,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,801 : 189,774 = 189,774 : x
  2. Step 2: Convert to fraction form
    129,801/189,774 = 189,774/x
  3. Step 3: Cross multiply
    129,801x = 189,774 × 189,774
  4. Step 4: Simplify right side
    129,801x = 36,014,171,076
  5. Step 5: Solve for x
    x = 36,014,171,076/129,801
  6. Step 6: Final answer
    x = 277,456.81

Related Problems

Find third proportional to 64,900.50 and 94,887
Half scale
Find third proportional to 259,602 and 379,548
Double scale
Find third proportional to 129,803 and 189,777
Similar ratio
Find third proportional to 194,701.50 and 284,661
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.