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Finding the Fourth Proportional to 133,006.68, 183,553.64 and 72,580.64

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Solution

The fourth proportional to 133,006.68, 183,553.64 and 72,580.64 is: 100,163.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,006.68 : 183,553.64 = 72,580.64 : x
  2. Step 2: Convert to fraction form
    133,006.68/183,553.64 = 72,580.64/x
  3. Step 3: Cross multiply
    133,006.68x = 183,553.64 × 72,580.64
  4. Step 4: Simplify right side
    133,006.68x = 13,322,439,384.86
  5. Step 5: Solve for x
    x = 13,322,439,384.86/133,006.68
  6. Step 6: Final answer
    x = 100,163.69

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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.