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Finding the Fourth Proportional to 114,917.80, 158,455.80 and 80,915.41

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Solution

The fourth proportional to 114,917.80, 158,455.80 and 80,915.41 is: 111,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,917.80 : 158,455.80 = 80,915.41 : x
  2. Step 2: Convert to fraction form
    114,917.80/158,455.80 = 80,915.41/x
  3. Step 3: Cross multiply
    114,917.80x = 158,455.80 × 80,915.41
  4. Step 4: Simplify right side
    114,917.80x = 12,821,516,023.88
  5. Step 5: Solve for x
    x = 12,821,516,023.88/114,917.80
  6. Step 6: Final answer
    x = 111,571.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.