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Finding the Fourth Proportional to 93.08, 137.96 and 91.64

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Solution

The fourth proportional to 93.08, 137.96 and 91.64 is: 135.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.08 : 137.96 = 91.64 : x
  2. Step 2: Convert to fraction form
    93.08/137.96 = 91.64/x
  3. Step 3: Cross multiply
    93.08x = 137.96 × 91.64
  4. Step 4: Simplify right side
    93.08x = 12,642.65
  5. Step 5: Solve for x
    x = 12,642.65/93.08
  6. Step 6: Final answer
    x = 135.83

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These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.