Home / 85,915-131,424

Finding the Third Proportional to 85,915 and 131,424

Calculator

Solution

The third proportional to 85,915 and 131,424 is: 201,039.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,915 : 131,424 = 131,424 : x
  2. Step 2: Convert to fraction form
    85,915/131,424 = 131,424/x
  3. Step 3: Cross multiply
    85,915x = 131,424 × 131,424
  4. Step 4: Simplify right side
    85,915x = 17,272,267,776
  5. Step 5: Solve for x
    x = 17,272,267,776/85,915
  6. Step 6: Final answer
    x = 201,039.02

Related Problems

Find third proportional to 42,957.50 and 65,712
Half scale
Find third proportional to 171,830 and 262,848
Double scale
Find third proportional to 85,917 and 131,427
Similar ratio
Find third proportional to 128,872.50 and 197,136
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.