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Finding the Fourth Proportional to 143,383.36, 197,880.12 and 86,024.84

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Solution

The fourth proportional to 143,383.36, 197,880.12 and 86,024.84 is: 118,720.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,383.36 : 197,880.12 = 86,024.84 : x
  2. Step 2: Convert to fraction form
    143,383.36/197,880.12 = 86,024.84/x
  3. Step 3: Cross multiply
    143,383.36x = 197,880.12 × 86,024.84
  4. Step 4: Simplify right side
    143,383.36x = 17,022,605,662.18
  5. Step 5: Solve for x
    x = 17,022,605,662.18/143,383.36
  6. Step 6: Final answer
    x = 118,720.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.