Home / 56,176-129,720

Finding the Third Proportional to 56,176 and 129,720

Calculator

Solution

The third proportional to 56,176 and 129,720 is: 299,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,176 : 129,720 = 129,720 : x
  2. Step 2: Convert to fraction form
    56,176/129,720 = 129,720/x
  3. Step 3: Cross multiply
    56,176x = 129,720 × 129,720
  4. Step 4: Simplify right side
    56,176x = 16,827,278,400
  5. Step 5: Solve for x
    x = 16,827,278,400/56,176
  6. Step 6: Final answer
    x = 299,545.68

Related Problems

Find third proportional to 28,088 and 64,860
Half scale
Find third proportional to 112,352 and 259,440
Double scale
Find third proportional to 56,178 and 129,725
Similar ratio
Find third proportional to 84,264 and 194,580
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.