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Finding the Fourth Proportional to 145,188.72, 217,465.56 and 102,940.74

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Solution

The fourth proportional to 145,188.72, 217,465.56 and 102,940.74 is: 154,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,188.72 : 217,465.56 = 102,940.74 : x
  2. Step 2: Convert to fraction form
    145,188.72/217,465.56 = 102,940.74/x
  3. Step 3: Cross multiply
    145,188.72x = 217,465.56 × 102,940.74
  4. Step 4: Simplify right side
    145,188.72x = 22,386,065,670.91
  5. Step 5: Solve for x
    x = 22,386,065,670.91/145,188.72
  6. Step 6: Final answer
    x = 154,185.98

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