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Finding the Fourth Proportional to 133,310.84, 183,971.16 and 79,600.55

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Solution

The fourth proportional to 133,310.84, 183,971.16 and 79,600.55 is: 109,850.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,310.84 : 183,971.16 = 79,600.55 : x
  2. Step 2: Convert to fraction form
    133,310.84/183,971.16 = 79,600.55/x
  3. Step 3: Cross multiply
    133,310.84x = 183,971.16 × 79,600.55
  4. Step 4: Simplify right side
    133,310.84x = 14,644,205,520.14
  5. Step 5: Solve for x
    x = 14,644,205,520.14/133,310.84
  6. Step 6: Final answer
    x = 109,850.07

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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.