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Finding the Fourth Proportional to 163,397.85, 225,475.54 and 90,802.88

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Solution

The fourth proportional to 163,397.85, 225,475.54 and 90,802.88 is: 125,300.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,397.85 : 225,475.54 = 90,802.88 : x
  2. Step 2: Convert to fraction form
    163,397.85/225,475.54 = 90,802.88/x
  3. Step 3: Cross multiply
    163,397.85x = 225,475.54 × 90,802.88
  4. Step 4: Simplify right side
    163,397.85x = 20,473,828,401.56
  5. Step 5: Solve for x
    x = 20,473,828,401.56/163,397.85
  6. Step 6: Final answer
    x = 125,300.48

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