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Finding the Fourth Proportional to 145,429.83, 200,691.95 and 81,767.88

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Solution

The fourth proportional to 145,429.83, 200,691.95 and 81,767.88 is: 112,838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,429.83 : 200,691.95 = 81,767.88 : x
  2. Step 2: Convert to fraction form
    145,429.83/200,691.95 = 81,767.88/x
  3. Step 3: Cross multiply
    145,429.83x = 200,691.95 × 81,767.88
  4. Step 4: Simplify right side
    145,429.83x = 16,410,154,875.73
  5. Step 5: Solve for x
    x = 16,410,154,875.73/145,429.83
  6. Step 6: Final answer
    x = 112,838.99

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