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Finding the Fourth Proportional to 235,930.72, 325,582.72 and 128,500.42

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Solution

The fourth proportional to 235,930.72, 325,582.72 and 128,500.42 is: 177,329.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,930.72 : 325,582.72 = 128,500.42 : x
  2. Step 2: Convert to fraction form
    235,930.72/325,582.72 = 128,500.42/x
  3. Step 3: Cross multiply
    235,930.72x = 325,582.72 × 128,500.42
  4. Step 4: Simplify right side
    235,930.72x = 41,837,516,264.74
  5. Step 5: Solve for x
    x = 41,837,516,264.74/235,930.72
  6. Step 6: Final answer
    x = 177,329.67

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