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Finding the Fourth Proportional to 132,678, 183,093.02 and 72,249.36

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Solution

The fourth proportional to 132,678, 183,093.02 and 72,249.36 is: 99,702.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,678 : 183,093.02 = 72,249.36 : x
  2. Step 2: Convert to fraction form
    132,678/183,093.02 = 72,249.36/x
  3. Step 3: Cross multiply
    132,678x = 183,093.02 × 72,249.36
  4. Step 4: Simplify right side
    132,678x = 13,228,353,515.47
  5. Step 5: Solve for x
    x = 13,228,353,515.47/132,678
  6. Step 6: Final answer
    x = 99,702.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.