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Finding the Fourth Proportional to 161,928.40, 242,849.40 and 56,736.40

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Solution

The fourth proportional to 161,928.40, 242,849.40 and 56,736.40 is: 85,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,928.40 : 242,849.40 = 56,736.40 : x
  2. Step 2: Convert to fraction form
    161,928.40/242,849.40 = 56,736.40/x
  3. Step 3: Cross multiply
    161,928.40x = 242,849.40 × 56,736.40
  4. Step 4: Simplify right side
    161,928.40x = 13,778,400,698.16
  5. Step 5: Solve for x
    x = 13,778,400,698.16/161,928.40
  6. Step 6: Final answer
    x = 85,089.46

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