Home / 74,400-108,315

Finding the Third Proportional to 74,400 and 108,315

Calculator

Solution

The third proportional to 74,400 and 108,315 is: 157,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,400 : 108,315 = 108,315 : x
  2. Step 2: Convert to fraction form
    74,400/108,315 = 108,315/x
  3. Step 3: Cross multiply
    74,400x = 108,315 × 108,315
  4. Step 4: Simplify right side
    74,400x = 11,732,139,225
  5. Step 5: Solve for x
    x = 11,732,139,225/74,400
  6. Step 6: Final answer
    x = 157,690.04

Related Problems

Find third proportional to 37,200 and 54,157.50
Half scale
Find third proportional to 148,800 and 216,630
Double scale
Find third proportional to 74,402 and 108,318
Similar ratio
Find third proportional to 111,600 and 162,472.50
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.