Home / 128,000.50-169,851

Finding the Third Proportional to 128,000.50 and 169,851

Calculator

Solution

The third proportional to 128,000.50 and 169,851 is: 225,384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,000.50 : 169,851 = 169,851 : x
  2. Step 2: Convert to fraction form
    128,000.50/169,851 = 169,851/x
  3. Step 3: Cross multiply
    128,000.50x = 169,851 × 169,851
  4. Step 4: Simplify right side
    128,000.50x = 28,849,362,201
  5. Step 5: Solve for x
    x = 28,849,362,201/128,000.50
  6. Step 6: Final answer
    x = 225,384.76

Related Problems

Find third proportional to 64,000.25 and 84,925.50
Half scale
Find third proportional to 256,001 and 339,702
Double scale
Find third proportional to 128,003 and 169,854
Similar ratio
Find third proportional to 192,000.75 and 254,776.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.