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Finding the Fourth Proportional to 153,636.72, 212,018.04 and 85,652.88

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Solution

The fourth proportional to 153,636.72, 212,018.04 and 85,652.88 is: 118,200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,636.72 : 212,018.04 = 85,652.88 : x
  2. Step 2: Convert to fraction form
    153,636.72/212,018.04 = 85,652.88/x
  3. Step 3: Cross multiply
    153,636.72x = 212,018.04 × 85,652.88
  4. Step 4: Simplify right side
    153,636.72x = 18,159,955,737.96
  5. Step 5: Solve for x
    x = 18,159,955,737.96/153,636.72
  6. Step 6: Final answer
    x = 118,200.62

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