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Finding the Fourth Proportional to 161,966.40, 242,771.40 and 56,731.20

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Solution

The fourth proportional to 161,966.40, 242,771.40 and 56,731.20 is: 85,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,966.40 : 242,771.40 = 56,731.20 : x
  2. Step 2: Convert to fraction form
    161,966.40/242,771.40 = 56,731.20/x
  3. Step 3: Cross multiply
    161,966.40x = 242,771.40 × 56,731.20
  4. Step 4: Simplify right side
    161,966.40x = 13,772,712,847.68
  5. Step 5: Solve for x
    x = 13,772,712,847.68/161,966.40
  6. Step 6: Final answer
    x = 85,034.38

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