Home / 66,612-144,159

Finding the Third Proportional to 66,612 and 144,159

Calculator

Solution

The third proportional to 66,612 and 144,159 is: 311,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,612 : 144,159 = 144,159 : x
  2. Step 2: Convert to fraction form
    66,612/144,159 = 144,159/x
  3. Step 3: Cross multiply
    66,612x = 144,159 × 144,159
  4. Step 4: Simplify right side
    66,612x = 20,781,817,281
  5. Step 5: Solve for x
    x = 20,781,817,281/66,612
  6. Step 6: Final answer
    x = 311,983.09

Related Problems

Find third proportional to 33,306 and 72,079.50
Half scale
Find third proportional to 133,224 and 288,318
Double scale
Find third proportional to 66,614 and 144,163
Similar ratio
Find third proportional to 99,918 and 216,238.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.