Home / 79,746-128,488

Finding the Third Proportional to 79,746 and 128,488

Calculator

Solution

The third proportional to 79,746 and 128,488 is: 207,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,746 : 128,488 = 128,488 : x
  2. Step 2: Convert to fraction form
    79,746/128,488 = 128,488/x
  3. Step 3: Cross multiply
    79,746x = 128,488 × 128,488
  4. Step 4: Simplify right side
    79,746x = 16,509,166,144
  5. Step 5: Solve for x
    x = 16,509,166,144/79,746
  6. Step 6: Final answer
    x = 207,021.87

Related Problems

Find third proportional to 39,873 and 64,244
Half scale
Find third proportional to 159,492 and 256,976
Double scale
Find third proportional to 79,748 and 128,491
Similar ratio
Find third proportional to 119,619 and 192,732
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.