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Finding the Fourth Proportional to 104,383.32, 143,943.12 and 89,325.96

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Solution

The fourth proportional to 104,383.32, 143,943.12 and 89,325.96 is: 123,179.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,383.32 : 143,943.12 = 89,325.96 : x
  2. Step 2: Convert to fraction form
    104,383.32/143,943.12 = 89,325.96/x
  3. Step 3: Cross multiply
    104,383.32x = 143,943.12 × 89,325.96
  4. Step 4: Simplify right side
    104,383.32x = 12,857,857,379.40
  5. Step 5: Solve for x
    x = 12,857,857,379.40/104,383.32
  6. Step 6: Final answer
    x = 123,179.23

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Why These Related Problems?

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