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Finding the Fourth Proportional to 134,882.85, 186,138.33 and 74,453.51

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Solution

The fourth proportional to 134,882.85, 186,138.33 and 74,453.51 is: 102,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,882.85 : 186,138.33 = 74,453.51 : x
  2. Step 2: Convert to fraction form
    134,882.85/186,138.33 = 74,453.51/x
  3. Step 3: Cross multiply
    134,882.85x = 186,138.33 × 74,453.51
  4. Step 4: Simplify right side
    134,882.85x = 13,858,651,083.35
  5. Step 5: Solve for x
    x = 13,858,651,083.35/134,882.85
  6. Step 6: Final answer
    x = 102,745.84

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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.