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Finding the Fourth Proportional to 128,256.18, 176,995.62 and 74,521.59

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Solution

The fourth proportional to 128,256.18, 176,995.62 and 74,521.59 is: 102,841.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,256.18 : 176,995.62 = 74,521.59 : x
  2. Step 2: Convert to fraction form
    128,256.18/176,995.62 = 74,521.59/x
  3. Step 3: Cross multiply
    128,256.18x = 176,995.62 × 74,521.59
  4. Step 4: Simplify right side
    128,256.18x = 13,189,995,025.44
  5. Step 5: Solve for x
    x = 13,189,995,025.44/128,256.18
  6. Step 6: Final answer
    x = 102,841.01

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