Home / 56,178-129,725

Finding the Third Proportional to 56,178 and 129,725

Calculator

Solution

The third proportional to 56,178 and 129,725 is: 299,558.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,178 : 129,725 = 129,725 : x
  2. Step 2: Convert to fraction form
    56,178/129,725 = 129,725/x
  3. Step 3: Cross multiply
    56,178x = 129,725 × 129,725
  4. Step 4: Simplify right side
    56,178x = 16,828,575,625
  5. Step 5: Solve for x
    x = 16,828,575,625/56,178
  6. Step 6: Final answer
    x = 299,558.11

Related Problems

Find third proportional to 28,089 and 64,862.50
Half scale
Find third proportional to 112,356 and 259,450
Double scale
Find third proportional to 56,180 and 129,730
Similar ratio
Find third proportional to 84,267 and 194,587.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.