Home / 214,589.92-295,999.36-138,208

Finding the Fourth Proportional to 214,589.92, 295,999.36 and 138,208

Calculator

Solution

The fourth proportional to 214,589.92, 295,999.36 and 138,208 is: 190,640.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,589.92 : 295,999.36 = 138,208 : x
  2. Step 2: Convert to fraction form
    214,589.92/295,999.36 = 138,208/x
  3. Step 3: Cross multiply
    214,589.92x = 295,999.36 × 138,208
  4. Step 4: Simplify right side
    214,589.92x = 40,909,479,546.88
  5. Step 5: Solve for x
    x = 40,909,479,546.88/214,589.92
  6. Step 6: Final answer
    x = 190,640.27

Related Problems

Find fourth proportional to 107,294.96, 147,999.68 and 69,104
Half scale
Find fourth proportional to 429,179.84, 591,998.72 and 276,416
Double scale
Find fourth proportional to 214,590.92, 296,000.74 and 138,209
Similar ratio
Find fourth proportional to 321,884.88, 443,999.04 and 207,312
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.