Home / 155,942.10-215,199.95-84,321.95

Finding the Fourth Proportional to 155,942.10, 215,199.95 and 84,321.95

Calculator

Solution

The fourth proportional to 155,942.10, 215,199.95 and 84,321.95 is: 116,364.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,942.10 : 215,199.95 = 84,321.95 : x
  2. Step 2: Convert to fraction form
    155,942.10/215,199.95 = 84,321.95/x
  3. Step 3: Cross multiply
    155,942.10x = 215,199.95 × 84,321.95
  4. Step 4: Simplify right side
    155,942.10x = 18,146,078,893.46
  5. Step 5: Solve for x
    x = 18,146,078,893.46/155,942.10
  6. Step 6: Final answer
    x = 116,364.21

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.