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Finding the Fourth Proportional to 69,107.10, 103,660.65 and 34,115.10

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Solution

The fourth proportional to 69,107.10, 103,660.65 and 34,115.10 is: 51,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,107.10 : 103,660.65 = 34,115.10 : x
  2. Step 2: Convert to fraction form
    69,107.10/103,660.65 = 34,115.10/x
  3. Step 3: Cross multiply
    69,107.10x = 103,660.65 × 34,115.10
  4. Step 4: Simplify right side
    69,107.10x = 3,536,393,440.82
  5. Step 5: Solve for x
    x = 3,536,393,440.82/69,107.10
  6. Step 6: Final answer
    x = 51,172.65

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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.