Home / 139,151.56-192,016.02-78,714.76

Finding the Fourth Proportional to 139,151.56, 192,016.02 and 78,714.76

Calculator

Solution

The fourth proportional to 139,151.56, 192,016.02 and 78,714.76 is: 108,618.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,151.56 : 192,016.02 = 78,714.76 : x
  2. Step 2: Convert to fraction form
    139,151.56/192,016.02 = 78,714.76/x
  3. Step 3: Cross multiply
    139,151.56x = 192,016.02 × 78,714.76
  4. Step 4: Simplify right side
    139,151.56x = 15,114,494,930.46
  5. Step 5: Solve for x
    x = 15,114,494,930.46/139,151.56
  6. Step 6: Final answer
    x = 108,618.94

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.