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Finding the Fourth Proportional to 131.58, 195.98 and 129.98

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Solution

The fourth proportional to 131.58, 195.98 and 129.98 is: 193.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.58 : 195.98 = 129.98 : x
  2. Step 2: Convert to fraction form
    131.58/195.98 = 129.98/x
  3. Step 3: Cross multiply
    131.58x = 195.98 × 129.98
  4. Step 4: Simplify right side
    131.58x = 25,471.85
  5. Step 5: Solve for x
    x = 25,471.85/131.58
  6. Step 6: Final answer
    x = 193.58

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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.