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Finding the Fourth Proportional to 191.03, 286.55 and 61.03

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Solution

The fourth proportional to 191.03, 286.55 and 61.03 is: 91.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.03 : 286.55 = 61.03 : x
  2. Step 2: Convert to fraction form
    191.03/286.55 = 61.03/x
  3. Step 3: Cross multiply
    191.03x = 286.55 × 61.03
  4. Step 4: Simplify right side
    191.03x = 17,489.58
  5. Step 5: Solve for x
    x = 17,489.58/191.03
  6. Step 6: Final answer
    x = 91.55

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