Home / 70,721-148,713

Finding the Third Proportional to 70,721 and 148,713

Calculator

Solution

The third proportional to 70,721 and 148,713 is: 312,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,721 : 148,713 = 148,713 : x
  2. Step 2: Convert to fraction form
    70,721/148,713 = 148,713/x
  3. Step 3: Cross multiply
    70,721x = 148,713 × 148,713
  4. Step 4: Simplify right side
    70,721x = 22,115,556,369
  5. Step 5: Solve for x
    x = 22,115,556,369/70,721
  6. Step 6: Final answer
    x = 312,715.55

Related Problems

Find third proportional to 35,360.50 and 74,356.50
Half scale
Find third proportional to 141,442 and 297,426
Double scale
Find third proportional to 70,723 and 148,717
Similar ratio
Find third proportional to 106,081.50 and 223,069.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.