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Finding the Fourth Proportional to 104,381.62, 143,847.76 and 102,462.28

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Solution

The fourth proportional to 104,381.62, 143,847.76 and 102,462.28 is: 141,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,381.62 : 143,847.76 = 102,462.28 : x
  2. Step 2: Convert to fraction form
    104,381.62/143,847.76 = 102,462.28/x
  3. Step 3: Cross multiply
    104,381.62x = 143,847.76 × 102,462.28
  4. Step 4: Simplify right side
    104,381.62x = 14,738,969,462.49
  5. Step 5: Solve for x
    x = 14,738,969,462.49/104,381.62
  6. Step 6: Final answer
    x = 141,202.73

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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.