Home / 128,576-192,737

Finding the Third Proportional to 128,576 and 192,737

Calculator

Solution

The third proportional to 128,576 and 192,737 is: 288,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,576 : 192,737 = 192,737 : x
  2. Step 2: Convert to fraction form
    128,576/192,737 = 192,737/x
  3. Step 3: Cross multiply
    128,576x = 192,737 × 192,737
  4. Step 4: Simplify right side
    128,576x = 37,147,551,169
  5. Step 5: Solve for x
    x = 37,147,551,169/128,576
  6. Step 6: Final answer
    x = 288,915.13

Related Problems

Find third proportional to 64,288 and 96,368.50
Half scale
Find third proportional to 257,152 and 385,474
Double scale
Find third proportional to 128,578 and 192,740
Similar ratio
Find third proportional to 192,864 and 289,105.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.