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Finding the Fourth Proportional to 133,021.98, 183,569.49 and 72,591.39

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Solution

The fourth proportional to 133,021.98, 183,569.49 and 72,591.39 is: 100,175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,021.98 : 183,569.49 = 72,591.39 : x
  2. Step 2: Convert to fraction form
    133,021.98/183,569.49 = 72,591.39/x
  3. Step 3: Cross multiply
    133,021.98x = 183,569.49 × 72,591.39
  4. Step 4: Simplify right side
    133,021.98x = 13,325,564,440.69
  5. Step 5: Solve for x
    x = 13,325,564,440.69/133,021.98
  6. Step 6: Final answer
    x = 100,175.66

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