Home / 87,744-128,338

Finding the Third Proportional to 87,744 and 128,338

Calculator

Solution

The third proportional to 87,744 and 128,338 is: 187,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,744 : 128,338 = 128,338 : x
  2. Step 2: Convert to fraction form
    87,744/128,338 = 128,338/x
  3. Step 3: Cross multiply
    87,744x = 128,338 × 128,338
  4. Step 4: Simplify right side
    87,744x = 16,470,642,244
  5. Step 5: Solve for x
    x = 16,470,642,244/87,744
  6. Step 6: Final answer
    x = 187,712.46

Related Problems

Find third proportional to 43,872 and 64,169
Half scale
Find third proportional to 175,488 and 256,676
Double scale
Find third proportional to 87,746 and 128,341
Similar ratio
Find third proportional to 131,616 and 192,507
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.