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Finding the Fourth Proportional to 192,100.70, 287,783.85 and 103,324.70

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Solution

The fourth proportional to 192,100.70, 287,783.85 and 103,324.70 is: 154,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,100.70 : 287,783.85 = 103,324.70 : x
  2. Step 2: Convert to fraction form
    192,100.70/287,783.85 = 103,324.70/x
  3. Step 3: Cross multiply
    192,100.70x = 287,783.85 × 103,324.70
  4. Step 4: Simplify right side
    192,100.70x = 29,735,179,966.10
  5. Step 5: Solve for x
    x = 29,735,179,966.10/192,100.70
  6. Step 6: Final answer
    x = 154,789.55

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1.5x scale

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.