Home / 63,018-128,907

Finding the Third Proportional to 63,018 and 128,907

Calculator

Solution

The third proportional to 63,018 and 128,907 is: 263,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,018 : 128,907 = 128,907 : x
  2. Step 2: Convert to fraction form
    63,018/128,907 = 128,907/x
  3. Step 3: Cross multiply
    63,018x = 128,907 × 128,907
  4. Step 4: Simplify right side
    63,018x = 16,617,014,649
  5. Step 5: Solve for x
    x = 16,617,014,649/63,018
  6. Step 6: Final answer
    x = 263,686.80

Related Problems

Find third proportional to 31,509 and 64,453.50
Half scale
Find third proportional to 126,036 and 257,814
Double scale
Find third proportional to 63,020 and 128,911
Similar ratio
Find third proportional to 94,527 and 193,360.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.