Home / 70,989-156,740

Finding the Third Proportional to 70,989 and 156,740

Calculator

Solution

The third proportional to 70,989 and 156,740 is: 346,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,989 : 156,740 = 156,740 : x
  2. Step 2: Convert to fraction form
    70,989/156,740 = 156,740/x
  3. Step 3: Cross multiply
    70,989x = 156,740 × 156,740
  4. Step 4: Simplify right side
    70,989x = 24,567,427,600
  5. Step 5: Solve for x
    x = 24,567,427,600/70,989
  6. Step 6: Final answer
    x = 346,073.72

Related Problems

Find third proportional to 35,494.50 and 78,370
Half scale
Find third proportional to 141,978 and 313,480
Double scale
Find third proportional to 70,991 and 156,744
Similar ratio
Find third proportional to 106,483.50 and 235,110
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.