Home / 45,121.50-70,143

Finding the Third Proportional to 45,121.50 and 70,143

Calculator

Solution

The third proportional to 45,121.50 and 70,143 is: 109,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,121.50 : 70,143 = 70,143 : x
  2. Step 2: Convert to fraction form
    45,121.50/70,143 = 70,143/x
  3. Step 3: Cross multiply
    45,121.50x = 70,143 × 70,143
  4. Step 4: Simplify right side
    45,121.50x = 4,920,040,449
  5. Step 5: Solve for x
    x = 4,920,040,449/45,121.50
  6. Step 6: Final answer
    x = 109,039.82

Related Problems

Find third proportional to 22,560.75 and 35,071.50
Half scale
Find third proportional to 90,243 and 140,286
Double scale
Find third proportional to 45,124 and 70,146
Similar ratio
Find third proportional to 67,682.25 and 105,214.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.