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Finding the Fourth Proportional to 259,166.48, 388,808.76 and 81,672.56

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Solution

The fourth proportional to 259,166.48, 388,808.76 and 81,672.56 is: 122,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,166.48 : 388,808.76 = 81,672.56 : x
  2. Step 2: Convert to fraction form
    259,166.48/388,808.76 = 81,672.56/x
  3. Step 3: Cross multiply
    259,166.48x = 388,808.76 × 81,672.56
  4. Step 4: Simplify right side
    259,166.48x = 31,755,006,779.63
  5. Step 5: Solve for x
    x = 31,755,006,779.63/259,166.48
  6. Step 6: Final answer
    x = 122,527.45

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