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Finding the Fourth Proportional to 128,193.83, 176,906.80 and 70,837.10

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Solution

The fourth proportional to 128,193.83, 176,906.80 and 70,837.10 is: 97,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,193.83 : 176,906.80 = 70,837.10 : x
  2. Step 2: Convert to fraction form
    128,193.83/176,906.80 = 70,837.10/x
  3. Step 3: Cross multiply
    128,193.83x = 176,906.80 × 70,837.10
  4. Step 4: Simplify right side
    128,193.83x = 12,531,564,549.69
  5. Step 5: Solve for x
    x = 12,531,564,549.69/128,193.83
  6. Step 6: Final answer
    x = 97,754.82

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