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Finding the Fourth Proportional to 192,101.70, 287,785.35 and 103,325.70

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Solution

The fourth proportional to 192,101.70, 287,785.35 and 103,325.70 is: 154,791.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,101.70 : 287,785.35 = 103,325.70 : x
  2. Step 2: Convert to fraction form
    192,101.70/287,785.35 = 103,325.70/x
  3. Step 3: Cross multiply
    192,101.70x = 287,785.35 × 103,325.70
  4. Step 4: Simplify right side
    192,101.70x = 29,735,622,738.50
  5. Step 5: Solve for x
    x = 29,735,622,738.50/192,101.70
  6. Step 6: Final answer
    x = 154,791.04

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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.