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Finding the Fourth Proportional to 119,306.29, 178,570.02 and 87,707.98

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Solution

The fourth proportional to 119,306.29, 178,570.02 and 87,707.98 is: 131,275.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,306.29 : 178,570.02 = 87,707.98 : x
  2. Step 2: Convert to fraction form
    119,306.29/178,570.02 = 87,707.98/x
  3. Step 3: Cross multiply
    119,306.29x = 178,570.02 × 87,707.98
  4. Step 4: Simplify right side
    119,306.29x = 15,662,015,304.22
  5. Step 5: Solve for x
    x = 15,662,015,304.22/119,306.29
  6. Step 6: Final answer
    x = 131,275.69

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