Home / 68,060-139,576

Finding the Third Proportional to 68,060 and 139,576

Calculator

Solution

The third proportional to 68,060 and 139,576 is: 286,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,060 : 139,576 = 139,576 : x
  2. Step 2: Convert to fraction form
    68,060/139,576 = 139,576/x
  3. Step 3: Cross multiply
    68,060x = 139,576 × 139,576
  4. Step 4: Simplify right side
    68,060x = 19,481,459,776
  5. Step 5: Solve for x
    x = 19,481,459,776/68,060
  6. Step 6: Final answer
    x = 286,239.49

Related Problems

Find third proportional to 34,030 and 69,788
Half scale
Find third proportional to 136,120 and 279,152
Double scale
Find third proportional to 68,062 and 139,580
Similar ratio
Find third proportional to 102,090 and 209,364
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.