Home / 42,135-90,102

Finding the Third Proportional to 42,135 and 90,102

Calculator

Solution

The third proportional to 42,135 and 90,102 is: 192,675.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,135 : 90,102 = 90,102 : x
  2. Step 2: Convert to fraction form
    42,135/90,102 = 90,102/x
  3. Step 3: Cross multiply
    42,135x = 90,102 × 90,102
  4. Step 4: Simplify right side
    42,135x = 8,118,370,404
  5. Step 5: Solve for x
    x = 8,118,370,404/42,135
  6. Step 6: Final answer
    x = 192,675.22

Related Problems

Find third proportional to 21,067.50 and 45,051
Half scale
Find third proportional to 84,270 and 180,204
Double scale
Find third proportional to 42,137 and 90,106
Similar ratio
Find third proportional to 63,202.50 and 135,153
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.