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Finding the Fourth Proportional to 208,061.42, 312,018.32 and 74,905.92

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Solution

The fourth proportional to 208,061.42, 312,018.32 and 74,905.92 is: 112,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,061.42 : 312,018.32 = 74,905.92 : x
  2. Step 2: Convert to fraction form
    208,061.42/312,018.32 = 74,905.92/x
  3. Step 3: Cross multiply
    208,061.42x = 312,018.32 × 74,905.92
  4. Step 4: Simplify right side
    208,061.42x = 23,372,018,941.92
  5. Step 5: Solve for x
    x = 23,372,018,941.92/208,061.42
  6. Step 6: Final answer
    x = 112,332.31

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