Home / 156,198-215,552.92-84,578

Finding the Fourth Proportional to 156,198, 215,552.92 and 84,578

Calculator

Solution

The fourth proportional to 156,198, 215,552.92 and 84,578 is: 116,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,198 : 215,552.92 = 84,578 : x
  2. Step 2: Convert to fraction form
    156,198/215,552.92 = 84,578/x
  3. Step 3: Cross multiply
    156,198x = 215,552.92 × 84,578
  4. Step 4: Simplify right side
    156,198x = 18,231,034,867.76
  5. Step 5: Solve for x
    x = 18,231,034,867.76/156,198
  6. Step 6: Final answer
    x = 116,717.47

Related Problems

Find fourth proportional to 78,099, 107,776.46 and 42,289
Half scale
Find fourth proportional to 312,396, 431,105.84 and 169,156
Double scale
Find fourth proportional to 156,199, 215,554.30 and 84,579
Similar ratio
Find fourth proportional to 234,297, 323,329.38 and 126,867
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.