Home / 139,815.20-192,930.40-83,215.52

Finding the Fourth Proportional to 139,815.20, 192,930.40 and 83,215.52

Calculator

Solution

The fourth proportional to 139,815.20, 192,930.40 and 83,215.52 is: 114,828.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,815.20 : 192,930.40 = 83,215.52 : x
  2. Step 2: Convert to fraction form
    139,815.20/192,930.40 = 83,215.52/x
  3. Step 3: Cross multiply
    139,815.20x = 192,930.40 × 83,215.52
  4. Step 4: Simplify right side
    139,815.20x = 16,054,803,559.81
  5. Step 5: Solve for x
    x = 16,054,803,559.81/139,815.20
  6. Step 6: Final answer
    x = 114,828.74

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.