Home / 83,115-178,137

Finding the Third Proportional to 83,115 and 178,137

Calculator

Solution

The third proportional to 83,115 and 178,137 is: 381,793.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,115 : 178,137 = 178,137 : x
  2. Step 2: Convert to fraction form
    83,115/178,137 = 178,137/x
  3. Step 3: Cross multiply
    83,115x = 178,137 × 178,137
  4. Step 4: Simplify right side
    83,115x = 31,732,790,769
  5. Step 5: Solve for x
    x = 31,732,790,769/83,115
  6. Step 6: Final answer
    x = 381,793.79

Related Problems

Find third proportional to 41,557.50 and 89,068.50
Half scale
Find third proportional to 166,230 and 356,274
Double scale
Find third proportional to 83,117 and 178,141
Similar ratio
Find third proportional to 124,672.50 and 267,205.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.