Home / 212,068.10-317,992.80-78,879.80

Finding the Fourth Proportional to 212,068.10, 317,992.80 and 78,879.80

Calculator

Solution

The fourth proportional to 212,068.10, 317,992.80 and 78,879.80 is: 118,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,068.10 : 317,992.80 = 78,879.80 : x
  2. Step 2: Convert to fraction form
    212,068.10/317,992.80 = 78,879.80/x
  3. Step 3: Cross multiply
    212,068.10x = 317,992.80 × 78,879.80
  4. Step 4: Simplify right side
    212,068.10x = 25,083,208,465.44
  5. Step 5: Solve for x
    x = 25,083,208,465.44/212,068.10
  6. Step 6: Final answer
    x = 118,279.03

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.