Home / 278,102.01-417,153.71-78,423.44

Finding the Fourth Proportional to 278,102.01, 417,153.71 and 78,423.44

Calculator

Solution

The fourth proportional to 278,102.01, 417,153.71 and 78,423.44 is: 117,635.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,102.01 : 417,153.71 = 78,423.44 : x
  2. Step 2: Convert to fraction form
    278,102.01/417,153.71 = 78,423.44/x
  3. Step 3: Cross multiply
    278,102.01x = 417,153.71 × 78,423.44
  4. Step 4: Simplify right side
    278,102.01x = 32,714,629,597.73
  5. Step 5: Solve for x
    x = 32,714,629,597.73/278,102.01
  6. Step 6: Final answer
    x = 117,635.36

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.