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Finding the Fourth Proportional to 124.74, 187.05 and 116.70

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Solution

The fourth proportional to 124.74, 187.05 and 116.70 is: 174.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.74 : 187.05 = 116.70 : x
  2. Step 2: Convert to fraction form
    124.74/187.05 = 116.70/x
  3. Step 3: Cross multiply
    124.74x = 187.05 × 116.70
  4. Step 4: Simplify right side
    124.74x = 21,828.74
  5. Step 5: Solve for x
    x = 21,828.74/124.74
  6. Step 6: Final answer
    x = 174.99

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