Home / 130,120-190,220

Finding the Third Proportional to 130,120 and 190,220

Calculator

Solution

The third proportional to 130,120 and 190,220 is: 278,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,120 : 190,220 = 190,220 : x
  2. Step 2: Convert to fraction form
    130,120/190,220 = 190,220/x
  3. Step 3: Cross multiply
    130,120x = 190,220 × 190,220
  4. Step 4: Simplify right side
    130,120x = 36,183,648,400
  5. Step 5: Solve for x
    x = 36,183,648,400/130,120
  6. Step 6: Final answer
    x = 278,079.07

Related Problems

Find third proportional to 65,060 and 95,110
Half scale
Find third proportional to 260,240 and 380,440
Double scale
Find third proportional to 130,122 and 190,223
Similar ratio
Find third proportional to 195,180 and 285,330
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.