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Finding the Fourth Proportional to 159,203.43, 219,609.50 and 99,483.75

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Solution

The fourth proportional to 159,203.43, 219,609.50 and 99,483.75 is: 137,230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,203.43 : 219,609.50 = 99,483.75 : x
  2. Step 2: Convert to fraction form
    159,203.43/219,609.50 = 99,483.75/x
  3. Step 3: Cross multiply
    159,203.43x = 219,609.50 × 99,483.75
  4. Step 4: Simplify right side
    159,203.43x = 21,847,576,098.21
  5. Step 5: Solve for x
    x = 21,847,576,098.21/159,203.43
  6. Step 6: Final answer
    x = 137,230.56

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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.