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Finding the Fourth Proportional to 129,304.26, 178,442.06 and 71,948.16

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Solution

The fourth proportional to 129,304.26, 178,442.06 and 71,948.16 is: 99,289.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,304.26 : 178,442.06 = 71,948.16 : x
  2. Step 2: Convert to fraction form
    129,304.26/178,442.06 = 71,948.16/x
  3. Step 3: Cross multiply
    129,304.26x = 178,442.06 × 71,948.16
  4. Step 4: Simplify right side
    129,304.26x = 12,838,577,523.87
  5. Step 5: Solve for x
    x = 12,838,577,523.87/129,304.26
  6. Step 6: Final answer
    x = 99,289.67

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