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Finding the Fourth Proportional to 117,511.20, 176,342.40 and 64,958.40

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Solution

The fourth proportional to 117,511.20, 176,342.40 and 64,958.40 is: 97,479.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,511.20 : 176,342.40 = 64,958.40 : x
  2. Step 2: Convert to fraction form
    117,511.20/176,342.40 = 64,958.40/x
  3. Step 3: Cross multiply
    117,511.20x = 176,342.40 × 64,958.40
  4. Step 4: Simplify right side
    117,511.20x = 11,454,920,156.16
  5. Step 5: Solve for x
    x = 11,454,920,156.16/117,511.20
  6. Step 6: Final answer
    x = 97,479.39

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