Home / 83,178.09-114,916.05-79,081.52

Finding the Fourth Proportional to 83,178.09, 114,916.05 and 79,081.52

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Solution

The fourth proportional to 83,178.09, 114,916.05 and 79,081.52 is: 109,256.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,178.09 : 114,916.05 = 79,081.52 : x
  2. Step 2: Convert to fraction form
    83,178.09/114,916.05 = 79,081.52/x
  3. Step 3: Cross multiply
    83,178.09x = 114,916.05 × 79,081.52
  4. Step 4: Simplify right side
    83,178.09x = 9,087,735,331.82
  5. Step 5: Solve for x
    x = 9,087,735,331.82/83,178.09
  6. Step 6: Final answer
    x = 109,256.36

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