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Finding the Fourth Proportional to 133,065, 183,629.88 and 73,449

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Solution

The fourth proportional to 133,065, 183,629.88 and 73,449 is: 101,359.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,065 : 183,629.88 = 73,449 : x
  2. Step 2: Convert to fraction form
    133,065/183,629.88 = 73,449/x
  3. Step 3: Cross multiply
    133,065x = 183,629.88 × 73,449
  4. Step 4: Simplify right side
    133,065x = 13,487,431,056.12
  5. Step 5: Solve for x
    x = 13,487,431,056.12/133,065
  6. Step 6: Final answer
    x = 101,359.72

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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.