Home / 72,129-157,368

Finding the Third Proportional to 72,129 and 157,368

Calculator

Solution

The third proportional to 72,129 and 157,368 is: 343,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,129 : 157,368 = 157,368 : x
  2. Step 2: Convert to fraction form
    72,129/157,368 = 157,368/x
  3. Step 3: Cross multiply
    72,129x = 157,368 × 157,368
  4. Step 4: Simplify right side
    72,129x = 24,764,687,424
  5. Step 5: Solve for x
    x = 24,764,687,424/72,129
  6. Step 6: Final answer
    x = 343,338.84

Related Problems

Find third proportional to 36,064.50 and 78,684
Half scale
Find third proportional to 144,258 and 314,736
Double scale
Find third proportional to 72,131 and 157,372
Similar ratio
Find third proportional to 108,193.50 and 236,052
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.