Home / 155,390.36-214,377.96-87,391.74

Finding the Fourth Proportional to 155,390.36, 214,377.96 and 87,391.74

Calculator

Solution

The fourth proportional to 155,390.36, 214,377.96 and 87,391.74 is: 120,566.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,390.36 : 214,377.96 = 87,391.74 : x
  2. Step 2: Convert to fraction form
    155,390.36/214,377.96 = 87,391.74/x
  3. Step 3: Cross multiply
    155,390.36x = 214,377.96 × 87,391.74
  4. Step 4: Simplify right side
    155,390.36x = 18,734,862,942.05
  5. Step 5: Solve for x
    x = 18,734,862,942.05/155,390.36
  6. Step 6: Final answer
    x = 120,566.44

Related Problems

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.