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Finding the Fourth Proportional to 225,986.86, 311,861 and 124,014.04

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Solution

The fourth proportional to 225,986.86, 311,861 and 124,014.04 is: 171,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,986.86 : 311,861 = 124,014.04 : x
  2. Step 2: Convert to fraction form
    225,986.86/311,861 = 124,014.04/x
  3. Step 3: Cross multiply
    225,986.86x = 311,861 × 124,014.04
  4. Step 4: Simplify right side
    225,986.86x = 38,675,142,528.44
  5. Step 5: Solve for x
    x = 38,675,142,528.44/225,986.86
  6. Step 6: Final answer
    x = 171,138.90

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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.