Home / 76,872-157,572

Finding the Third Proportional to 76,872 and 157,572

Calculator

Solution

The third proportional to 76,872 and 157,572 is: 322,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,872 : 157,572 = 157,572 : x
  2. Step 2: Convert to fraction form
    76,872/157,572 = 157,572/x
  3. Step 3: Cross multiply
    76,872x = 157,572 × 157,572
  4. Step 4: Simplify right side
    76,872x = 24,828,935,184
  5. Step 5: Solve for x
    x = 24,828,935,184/76,872
  6. Step 6: Final answer
    x = 322,990.62

Related Problems

Find third proportional to 38,436 and 78,786
Half scale
Find third proportional to 153,744 and 315,144
Double scale
Find third proportional to 76,874 and 157,576
Similar ratio
Find third proportional to 115,308 and 236,358
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.