Home / 81,231-118,678.50

Finding the Third Proportional to 81,231 and 118,678.50

Calculator

Solution

The third proportional to 81,231 and 118,678.50 is: 173,389.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,231 : 118,678.50 = 118,678.50 : x
  2. Step 2: Convert to fraction form
    81,231/118,678.50 = 118,678.50/x
  3. Step 3: Cross multiply
    81,231x = 118,678.50 × 118,678.50
  4. Step 4: Simplify right side
    81,231x = 14,084,586,362.25
  5. Step 5: Solve for x
    x = 14,084,586,362.25/81,231
  6. Step 6: Final answer
    x = 173,389.30

Related Problems

Find third proportional to 40,615.50 and 59,339.25
Half scale
Find third proportional to 162,462 and 237,357
Double scale
Find third proportional to 81,233 and 118,681
Similar ratio
Find third proportional to 121,846.50 and 178,017.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.