Home / 129,559.63-194,192.02-78,846.78

Finding the Fourth Proportional to 129,559.63, 194,192.02 and 78,846.78

Calculator

Solution

The fourth proportional to 129,559.63, 194,192.02 and 78,846.78 is: 118,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,559.63 : 194,192.02 = 78,846.78 : x
  2. Step 2: Convert to fraction form
    129,559.63/194,192.02 = 78,846.78/x
  3. Step 3: Cross multiply
    129,559.63x = 194,192.02 × 78,846.78
  4. Step 4: Simplify right side
    129,559.63x = 15,311,415,281.58
  5. Step 5: Solve for x
    x = 15,311,415,281.58/129,559.63
  6. Step 6: Final answer
    x = 118,180.45

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.