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Finding the Fourth Proportional to 117,912.60, 176,480.10 and 82,920.60

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Solution

The fourth proportional to 117,912.60, 176,480.10 and 82,920.60 is: 124,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,912.60 : 176,480.10 = 82,920.60 : x
  2. Step 2: Convert to fraction form
    117,912.60/176,480.10 = 82,920.60/x
  3. Step 3: Cross multiply
    117,912.60x = 176,480.10 × 82,920.60
  4. Step 4: Simplify right side
    117,912.60x = 14,633,835,780.06
  5. Step 5: Solve for x
    x = 14,633,835,780.06/117,912.60
  6. Step 6: Final answer
    x = 124,107.48

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.