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Finding the Fourth Proportional to 131.52, 197.14 and 70.60

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Solution

The fourth proportional to 131.52, 197.14 and 70.60 is: 105.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.52 : 197.14 = 70.60 : x
  2. Step 2: Convert to fraction form
    131.52/197.14 = 70.60/x
  3. Step 3: Cross multiply
    131.52x = 197.14 × 70.60
  4. Step 4: Simplify right side
    131.52x = 13,918.08
  5. Step 5: Solve for x
    x = 13,918.08/131.52
  6. Step 6: Final answer
    x = 105.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.