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Finding the Fourth Proportional to 170,602.72, 255,379.16 and 111,310.72

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Solution

The fourth proportional to 170,602.72, 255,379.16 and 111,310.72 is: 166,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,602.72 : 255,379.16 = 111,310.72 : x
  2. Step 2: Convert to fraction form
    170,602.72/255,379.16 = 111,310.72/x
  3. Step 3: Cross multiply
    170,602.72x = 255,379.16 × 111,310.72
  4. Step 4: Simplify right side
    170,602.72x = 28,426,438,172.60
  5. Step 5: Solve for x
    x = 28,426,438,172.60/170,602.72
  6. Step 6: Final answer
    x = 166,623.59

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