Home / 62,728.88-128,515.50

Finding the Third Proportional to 62,728.88 and 128,515.50

Calculator

Solution

The third proportional to 62,728.88 and 128,515.50 is: 263,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,728.88 : 128,515.50 = 128,515.50 : x
  2. Step 2: Convert to fraction form
    62,728.88/128,515.50 = 128,515.50/x
  3. Step 3: Cross multiply
    62,728.88x = 128,515.50 × 128,515.50
  4. Step 4: Simplify right side
    62,728.88x = 16,516,233,740.25
  5. Step 5: Solve for x
    x = 16,516,233,740.25/62,728.88
  6. Step 6: Final answer
    x = 263,295.55

Related Problems

Find third proportional to 31,364.44 and 64,257.75
Half scale
Find third proportional to 125,457.75 and 257,031
Double scale
Find third proportional to 62,731 and 128,520
Similar ratio
Find third proportional to 94,093.31 and 192,773.25
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.