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Finding the Fourth Proportional to 122.66, 183.99 and 37.16

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Solution

The fourth proportional to 122.66, 183.99 and 37.16 is: 55.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.66 : 183.99 = 37.16 : x
  2. Step 2: Convert to fraction form
    122.66/183.99 = 37.16/x
  3. Step 3: Cross multiply
    122.66x = 183.99 × 37.16
  4. Step 4: Simplify right side
    122.66x = 6,837.07
  5. Step 5: Solve for x
    x = 6,837.07/122.66
  6. Step 6: Final answer
    x = 55.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.