Home / 68,618-109,579

Finding the Third Proportional to 68,618 and 109,579

Calculator

Solution

The third proportional to 68,618 and 109,579 is: 174,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,618 : 109,579 = 109,579 : x
  2. Step 2: Convert to fraction form
    68,618/109,579 = 109,579/x
  3. Step 3: Cross multiply
    68,618x = 109,579 × 109,579
  4. Step 4: Simplify right side
    68,618x = 12,007,557,241
  5. Step 5: Solve for x
    x = 12,007,557,241/68,618
  6. Step 6: Final answer
    x = 174,991.36

Related Problems

Find third proportional to 34,309 and 54,789.50
Half scale
Find third proportional to 137,236 and 219,158
Double scale
Find third proportional to 68,620 and 109,582
Similar ratio
Find third proportional to 102,927 and 164,368.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.