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Finding the Fourth Proportional to 158.77, 219.01 and 96.60

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Solution

The fourth proportional to 158.77, 219.01 and 96.60 is: 133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.77 : 219.01 = 96.60 : x
  2. Step 2: Convert to fraction form
    158.77/219.01 = 96.60/x
  3. Step 3: Cross multiply
    158.77x = 219.01 × 96.60
  4. Step 4: Simplify right side
    158.77x = 21,156.37
  5. Step 5: Solve for x
    x = 21,156.37/158.77
  6. Step 6: Final answer
    x = 133.25

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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.