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Finding the Fourth Proportional to 102,503.37, 153,755.04 and 31,426.20

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Solution

The fourth proportional to 102,503.37, 153,755.04 and 31,426.20 is: 47,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,503.37 : 153,755.04 = 31,426.20 : x
  2. Step 2: Convert to fraction form
    102,503.37/153,755.04 = 31,426.20/x
  3. Step 3: Cross multiply
    102,503.37x = 153,755.04 × 31,426.20
  4. Step 4: Simplify right side
    102,503.37x = 4,831,936,638.05
  5. Step 5: Solve for x
    x = 4,831,936,638.05/102,503.37
  6. Step 6: Final answer
    x = 47,139.30

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