Home / 91,076-138,459

Finding the Third Proportional to 91,076 and 138,459

Calculator

Solution

The third proportional to 91,076 and 138,459 is: 210,493.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,076 : 138,459 = 138,459 : x
  2. Step 2: Convert to fraction form
    91,076/138,459 = 138,459/x
  3. Step 3: Cross multiply
    91,076x = 138,459 × 138,459
  4. Step 4: Simplify right side
    91,076x = 19,170,894,681
  5. Step 5: Solve for x
    x = 19,170,894,681/91,076
  6. Step 6: Final answer
    x = 210,493.38

Related Problems

Find third proportional to 45,538 and 69,229.50
Half scale
Find third proportional to 182,152 and 276,918
Double scale
Find third proportional to 91,078 and 138,462
Similar ratio
Find third proportional to 136,614 and 207,688.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.