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Finding the Fourth Proportional to 124.74, 186.95 and 56.19

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Solution

The fourth proportional to 124.74, 186.95 and 56.19 is: 84.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.74 : 186.95 = 56.19 : x
  2. Step 2: Convert to fraction form
    124.74/186.95 = 56.19/x
  3. Step 3: Cross multiply
    124.74x = 186.95 × 56.19
  4. Step 4: Simplify right side
    124.74x = 10,504.72
  5. Step 5: Solve for x
    x = 10,504.72/124.74
  6. Step 6: Final answer
    x = 84.22

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