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Finding the Fourth Proportional to 113,013.86, 155,980.62 and 74,774.16

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Solution

The fourth proportional to 113,013.86, 155,980.62 and 74,774.16 is: 103,202.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,013.86 : 155,980.62 = 74,774.16 : x
  2. Step 2: Convert to fraction form
    113,013.86/155,980.62 = 74,774.16/x
  3. Step 3: Cross multiply
    113,013.86x = 155,980.62 × 74,774.16
  4. Step 4: Simplify right side
    113,013.86x = 11,663,319,836.78
  5. Step 5: Solve for x
    x = 11,663,319,836.78/113,013.86
  6. Step 6: Final answer
    x = 103,202.57

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