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Finding the Fourth Proportional to 123.56, 184.08 and 118.32

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Solution

The fourth proportional to 123.56, 184.08 and 118.32 is: 176.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.56 : 184.08 = 118.32 : x
  2. Step 2: Convert to fraction form
    123.56/184.08 = 118.32/x
  3. Step 3: Cross multiply
    123.56x = 184.08 × 118.32
  4. Step 4: Simplify right side
    123.56x = 21,780.35
  5. Step 5: Solve for x
    x = 21,780.35/123.56
  6. Step 6: Final answer
    x = 176.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.