Home / 62,870-136,840

Finding the Third Proportional to 62,870 and 136,840

Calculator

Solution

The third proportional to 62,870 and 136,840 is: 297,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,870 : 136,840 = 136,840 : x
  2. Step 2: Convert to fraction form
    62,870/136,840 = 136,840/x
  3. Step 3: Cross multiply
    62,870x = 136,840 × 136,840
  4. Step 4: Simplify right side
    62,870x = 18,725,185,600
  5. Step 5: Solve for x
    x = 18,725,185,600/62,870
  6. Step 6: Final answer
    x = 297,839.76

Related Problems

Find third proportional to 31,435 and 68,420
Half scale
Find third proportional to 125,740 and 273,680
Double scale
Find third proportional to 62,872 and 136,844
Similar ratio
Find third proportional to 94,305 and 205,260
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.