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Finding the Fourth Proportional to 100,179.78, 150,031.13 and 57,970.91

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Solution

The fourth proportional to 100,179.78, 150,031.13 and 57,970.91 is: 86,818.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,179.78 : 150,031.13 = 57,970.91 : x
  2. Step 2: Convert to fraction form
    100,179.78/150,031.13 = 57,970.91/x
  3. Step 3: Cross multiply
    100,179.78x = 150,031.13 × 57,970.91
  4. Step 4: Simplify right side
    100,179.78x = 8,697,440,094.42
  5. Step 5: Solve for x
    x = 8,697,440,094.42/100,179.78
  6. Step 6: Final answer
    x = 86,818.32

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