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Finding the Fourth Proportional to 102,959.23, 142,354.85 and 90,175.76

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Solution

The fourth proportional to 102,959.23, 142,354.85 and 90,175.76 is: 124,680.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,959.23 : 142,354.85 = 90,175.76 : x
  2. Step 2: Convert to fraction form
    102,959.23/142,354.85 = 90,175.76/x
  3. Step 3: Cross multiply
    102,959.23x = 142,354.85 × 90,175.76
  4. Step 4: Simplify right side
    102,959.23x = 12,836,956,788.44
  5. Step 5: Solve for x
    x = 12,836,956,788.44/102,959.23
  6. Step 6: Final answer
    x = 124,680.00

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