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Finding the Fourth Proportional to 163,440.80, 245,031.60 and 89,568.80

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Solution

The fourth proportional to 163,440.80, 245,031.60 and 89,568.80 is: 134,282.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,440.80 : 245,031.60 = 89,568.80 : x
  2. Step 2: Convert to fraction form
    163,440.80/245,031.60 = 89,568.80/x
  3. Step 3: Cross multiply
    163,440.80x = 245,031.60 × 89,568.80
  4. Step 4: Simplify right side
    163,440.80x = 21,947,186,374.08
  5. Step 5: Solve for x
    x = 21,947,186,374.08/163,440.80
  6. Step 6: Final answer
    x = 134,282.18

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