Home / 87,699-189,408

Finding the Third Proportional to 87,699 and 189,408

Calculator

Solution

The third proportional to 87,699 and 189,408 is: 409,074.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,699 : 189,408 = 189,408 : x
  2. Step 2: Convert to fraction form
    87,699/189,408 = 189,408/x
  3. Step 3: Cross multiply
    87,699x = 189,408 × 189,408
  4. Step 4: Simplify right side
    87,699x = 35,875,390,464
  5. Step 5: Solve for x
    x = 35,875,390,464/87,699
  6. Step 6: Final answer
    x = 409,074.11

Related Problems

Find third proportional to 43,849.50 and 94,704
Half scale
Find third proportional to 175,398 and 378,816
Double scale
Find third proportional to 87,701 and 189,412
Similar ratio
Find third proportional to 131,548.50 and 284,112
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.