Home / 85,128-134,731

Finding the Third Proportional to 85,128 and 134,731

Calculator

Solution

The third proportional to 85,128 and 134,731 is: 213,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,128 : 134,731 = 134,731 : x
  2. Step 2: Convert to fraction form
    85,128/134,731 = 134,731/x
  3. Step 3: Cross multiply
    85,128x = 134,731 × 134,731
  4. Step 4: Simplify right side
    85,128x = 18,152,442,361
  5. Step 5: Solve for x
    x = 18,152,442,361/85,128
  6. Step 6: Final answer
    x = 213,237.04

Related Problems

Find third proportional to 42,564 and 67,365.50
Half scale
Find third proportional to 170,256 and 269,462
Double scale
Find third proportional to 85,130 and 134,734
Similar ratio
Find third proportional to 127,692 and 202,096.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.