Home / 86,677-137,911

Finding the Third Proportional to 86,677 and 137,911

Calculator

Solution

The third proportional to 86,677 and 137,911 is: 219,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,677 : 137,911 = 137,911 : x
  2. Step 2: Convert to fraction form
    86,677/137,911 = 137,911/x
  3. Step 3: Cross multiply
    86,677x = 137,911 × 137,911
  4. Step 4: Simplify right side
    86,677x = 19,019,443,921
  5. Step 5: Solve for x
    x = 19,019,443,921/86,677
  6. Step 6: Final answer
    x = 219,428.96

Related Problems

Find third proportional to 43,338.50 and 68,955.50
Half scale
Find third proportional to 173,354 and 275,822
Double scale
Find third proportional to 86,679 and 137,914
Similar ratio
Find third proportional to 130,015.50 and 206,866.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.