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Finding the Fourth Proportional to 131.56, 196.31 and 117.93

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Solution

The fourth proportional to 131.56, 196.31 and 117.93 is: 175.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.56 : 196.31 = 117.93 : x
  2. Step 2: Convert to fraction form
    131.56/196.31 = 117.93/x
  3. Step 3: Cross multiply
    131.56x = 196.31 × 117.93
  4. Step 4: Simplify right side
    131.56x = 23,150.84
  5. Step 5: Solve for x
    x = 23,150.84/131.56
  6. Step 6: Final answer
    x = 175.97

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