Home / 129,629.10-194,443.65-103,385.10

Finding the Fourth Proportional to 129,629.10, 194,443.65 and 103,385.10

Calculator

Solution

The fourth proportional to 129,629.10, 194,443.65 and 103,385.10 is: 155,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,629.10 : 194,443.65 = 103,385.10 : x
  2. Step 2: Convert to fraction form
    129,629.10/194,443.65 = 103,385.10/x
  3. Step 3: Cross multiply
    129,629.10x = 194,443.65 × 103,385.10
  4. Step 4: Simplify right side
    129,629.10x = 20,102,576,199.62
  5. Step 5: Solve for x
    x = 20,102,576,199.62/129,629.10
  6. Step 6: Final answer
    x = 155,077.65

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.