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Finding the Fourth Proportional to 153,962.90, 212,464.65 and 85,977.98

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Solution

The fourth proportional to 153,962.90, 212,464.65 and 85,977.98 is: 118,647.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,962.90 : 212,464.65 = 85,977.98 : x
  2. Step 2: Convert to fraction form
    153,962.90/212,464.65 = 85,977.98/x
  3. Step 3: Cross multiply
    153,962.90x = 212,464.65 × 85,977.98
  4. Step 4: Simplify right side
    153,962.90x = 18,267,281,428.41
  5. Step 5: Solve for x
    x = 18,267,281,428.41/153,962.90
  6. Step 6: Final answer
    x = 118,647.29

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