Home / 102,485.55-141,429.70-57,163.50

Finding the Fourth Proportional to 102,485.55, 141,429.70 and 57,163.50

Calculator

Solution

The fourth proportional to 102,485.55, 141,429.70 and 57,163.50 is: 78,885.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,485.55 : 141,429.70 = 57,163.50 : x
  2. Step 2: Convert to fraction form
    102,485.55/141,429.70 = 57,163.50/x
  3. Step 3: Cross multiply
    102,485.55x = 141,429.70 × 57,163.50
  4. Step 4: Simplify right side
    102,485.55x = 8,084,616,513.04
  5. Step 5: Solve for x
    x = 8,084,616,513.04/102,485.55
  6. Step 6: Final answer
    x = 78,885.43

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.