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Finding the Fourth Proportional to 102,893.79, 154,235.44 and 69,617.37

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Solution

The fourth proportional to 102,893.79, 154,235.44 and 69,617.37 is: 104,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,893.79 : 154,235.44 = 69,617.37 : x
  2. Step 2: Convert to fraction form
    102,893.79/154,235.44 = 69,617.37/x
  3. Step 3: Cross multiply
    102,893.79x = 154,235.44 × 69,617.37
  4. Step 4: Simplify right side
    102,893.79x = 10,737,466,359.00
  5. Step 5: Solve for x
    x = 10,737,466,359.00/102,893.79
  6. Step 6: Final answer
    x = 104,354.85

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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.