Home / 78,151.23-117,226.98-18,986.94

Finding the Fourth Proportional to 78,151.23, 117,226.98 and 18,986.94

Calculator

Solution

The fourth proportional to 78,151.23, 117,226.98 and 18,986.94 is: 28,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,151.23 : 117,226.98 = 18,986.94 : x
  2. Step 2: Convert to fraction form
    78,151.23/117,226.98 = 18,986.94/x
  3. Step 3: Cross multiply
    78,151.23x = 117,226.98 × 18,986.94
  4. Step 4: Simplify right side
    78,151.23x = 2,225,781,635.64
  5. Step 5: Solve for x
    x = 2,225,781,635.64/78,151.23
  6. Step 6: Final answer
    x = 28,480.44

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.