Home / 75,288-115,281

Finding the Third Proportional to 75,288 and 115,281

Calculator

Solution

The third proportional to 75,288 and 115,281 is: 176,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,288 : 115,281 = 115,281 : x
  2. Step 2: Convert to fraction form
    75,288/115,281 = 115,281/x
  3. Step 3: Cross multiply
    75,288x = 115,281 × 115,281
  4. Step 4: Simplify right side
    75,288x = 13,289,708,961
  5. Step 5: Solve for x
    x = 13,289,708,961/75,288
  6. Step 6: Final answer
    x = 176,518.29

Related Problems

Find third proportional to 37,644 and 57,640.50
Half scale
Find third proportional to 150,576 and 230,562
Double scale
Find third proportional to 75,290 and 115,284
Similar ratio
Find third proportional to 112,932 and 172,921.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.