Home / 59,170-128,708

Finding the Third Proportional to 59,170 and 128,708

Calculator

Solution

The third proportional to 59,170 and 128,708 is: 279,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,170 : 128,708 = 128,708 : x
  2. Step 2: Convert to fraction form
    59,170/128,708 = 128,708/x
  3. Step 3: Cross multiply
    59,170x = 128,708 × 128,708
  4. Step 4: Simplify right side
    59,170x = 16,565,749,264
  5. Step 5: Solve for x
    x = 16,565,749,264/59,170
  6. Step 6: Final answer
    x = 279,968.72

Related Problems

Find third proportional to 29,585 and 64,354
Half scale
Find third proportional to 118,340 and 257,416
Double scale
Find third proportional to 59,172 and 128,712
Similar ratio
Find third proportional to 88,755 and 193,062
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.