Home / 81,640-124,877

Finding the Third Proportional to 81,640 and 124,877

Calculator

Solution

The third proportional to 81,640 and 124,877 is: 191,012.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,640 : 124,877 = 124,877 : x
  2. Step 2: Convert to fraction form
    81,640/124,877 = 124,877/x
  3. Step 3: Cross multiply
    81,640x = 124,877 × 124,877
  4. Step 4: Simplify right side
    81,640x = 15,594,265,129
  5. Step 5: Solve for x
    x = 15,594,265,129/81,640
  6. Step 6: Final answer
    x = 191,012.56

Related Problems

Find third proportional to 40,820 and 62,438.50
Half scale
Find third proportional to 163,280 and 249,754
Double scale
Find third proportional to 81,642 and 124,880
Similar ratio
Find third proportional to 122,460 and 187,315.50
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.