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Finding the Fourth Proportional to 132,936, 183,464.64 and 73,320

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Solution

The fourth proportional to 132,936, 183,464.64 and 73,320 is: 101,188.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,936 : 183,464.64 = 73,320 : x
  2. Step 2: Convert to fraction form
    132,936/183,464.64 = 73,320/x
  3. Step 3: Cross multiply
    132,936x = 183,464.64 × 73,320
  4. Step 4: Simplify right side
    132,936x = 13,451,627,404.80
  5. Step 5: Solve for x
    x = 13,451,627,404.80/132,936
  6. Step 6: Final answer
    x = 101,188.75

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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.