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Finding the Fourth Proportional to 100,984.70, 151,477.05 and 30,863.90

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Solution

The fourth proportional to 100,984.70, 151,477.05 and 30,863.90 is: 46,295.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,984.70 : 151,477.05 = 30,863.90 : x
  2. Step 2: Convert to fraction form
    100,984.70/151,477.05 = 30,863.90/x
  3. Step 3: Cross multiply
    100,984.70x = 151,477.05 × 30,863.90
  4. Step 4: Simplify right side
    100,984.70x = 4,675,172,523.50
  5. Step 5: Solve for x
    x = 4,675,172,523.50/100,984.70
  6. Step 6: Final answer
    x = 46,295.85

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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.