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Finding the Fourth Proportional to 132,071.20, 198,301.20 and 92,802.40

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Solution

The fourth proportional to 132,071.20, 198,301.20 and 92,802.40 is: 139,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,071.20 : 198,301.20 = 92,802.40 : x
  2. Step 2: Convert to fraction form
    132,071.20/198,301.20 = 92,802.40/x
  3. Step 3: Cross multiply
    132,071.20x = 198,301.20 × 92,802.40
  4. Step 4: Simplify right side
    132,071.20x = 18,402,827,282.88
  5. Step 5: Solve for x
    x = 18,402,827,282.88/132,071.20
  6. Step 6: Final answer
    x = 139,340.20

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