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Finding the Fourth Proportional to 103,239.94, 154,755.33 and 69,963.37

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Solution

The fourth proportional to 103,239.94, 154,755.33 and 69,963.37 is: 104,874.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,239.94 : 154,755.33 = 69,963.37 : x
  2. Step 2: Convert to fraction form
    103,239.94/154,755.33 = 69,963.37/x
  3. Step 3: Cross multiply
    103,239.94x = 154,755.33 × 69,963.37
  4. Step 4: Simplify right side
    103,239.94x = 10,827,204,412.26
  5. Step 5: Solve for x
    x = 10,827,204,412.26/103,239.94
  6. Step 6: Final answer
    x = 104,874.18

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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.