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Finding the Fourth Proportional to 112,002, 168,003.72 and 28,896.72

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Solution

The fourth proportional to 112,002, 168,003.72 and 28,896.72 is: 43,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,002 : 168,003.72 = 28,896.72 : x
  2. Step 2: Convert to fraction form
    112,002/168,003.72 = 28,896.72/x
  3. Step 3: Cross multiply
    112,002x = 168,003.72 × 28,896.72
  4. Step 4: Simplify right side
    112,002x = 4,854,756,455.80
  5. Step 5: Solve for x
    x = 4,854,756,455.80/112,002
  6. Step 6: Final answer
    x = 43,345.27

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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.