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Finding the Fourth Proportional to 152,312.28, 210,190.92 and 85,244.28

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Solution

The fourth proportional to 152,312.28, 210,190.92 and 85,244.28 is: 117,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,312.28 : 210,190.92 = 85,244.28 : x
  2. Step 2: Convert to fraction form
    152,312.28/210,190.92 = 85,244.28/x
  3. Step 3: Cross multiply
    152,312.28x = 210,190.92 × 85,244.28
  4. Step 4: Simplify right side
    152,312.28x = 17,917,573,637.94
  5. Step 5: Solve for x
    x = 17,917,573,637.94/152,312.28
  6. Step 6: Final answer
    x = 117,637.09

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