Home / 80,280-123,438.75

Finding the Third Proportional to 80,280 and 123,438.75

Calculator

Solution

The third proportional to 80,280 and 123,438.75 is: 189,799.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,280 : 123,438.75 = 123,438.75 : x
  2. Step 2: Convert to fraction form
    80,280/123,438.75 = 123,438.75/x
  3. Step 3: Cross multiply
    80,280x = 123,438.75 × 123,438.75
  4. Step 4: Simplify right side
    80,280x = 15,237,125,001.56
  5. Step 5: Solve for x
    x = 15,237,125,001.56/80,280
  6. Step 6: Final answer
    x = 189,799.76

Related Problems

Find third proportional to 40,140 and 61,719.38
Half scale
Find third proportional to 160,560 and 246,877.50
Double scale
Find third proportional to 80,282 and 123,442
Similar ratio
Find third proportional to 120,420 and 185,158.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.