Home / 311,180.75-466,771.58-86,541.20

Finding the Fourth Proportional to 311,180.75, 466,771.58 and 86,541.20

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Solution

The fourth proportional to 311,180.75, 466,771.58 and 86,541.20 is: 129,811.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,180.75 : 466,771.58 = 86,541.20 : x
  2. Step 2: Convert to fraction form
    311,180.75/466,771.58 = 86,541.20/x
  3. Step 3: Cross multiply
    311,180.75x = 466,771.58 × 86,541.20
  4. Step 4: Simplify right side
    311,180.75x = 40,394,972,659.10
  5. Step 5: Solve for x
    x = 40,394,972,659.10/311,180.75
  6. Step 6: Final answer
    x = 129,811.93

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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.