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Finding the Fourth Proportional to 125.28, 187.83 and 53.10

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Solution

The fourth proportional to 125.28, 187.83 and 53.10 is: 79.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.28 : 187.83 = 53.10 : x
  2. Step 2: Convert to fraction form
    125.28/187.83 = 53.10/x
  3. Step 3: Cross multiply
    125.28x = 187.83 × 53.10
  4. Step 4: Simplify right side
    125.28x = 9,973.77
  5. Step 5: Solve for x
    x = 9,973.77/125.28
  6. Step 6: Final answer
    x = 79.61

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