Home / 103,849.11-155,615.09-53,945.37

Finding the Fourth Proportional to 103,849.11, 155,615.09 and 53,945.37

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Solution

The fourth proportional to 103,849.11, 155,615.09 and 53,945.37 is: 80,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,849.11 : 155,615.09 = 53,945.37 : x
  2. Step 2: Convert to fraction form
    103,849.11/155,615.09 = 53,945.37/x
  3. Step 3: Cross multiply
    103,849.11x = 155,615.09 × 53,945.37
  4. Step 4: Simplify right side
    103,849.11x = 8,394,713,337.91
  5. Step 5: Solve for x
    x = 8,394,713,337.91/103,849.11
  6. Step 6: Final answer
    x = 80,835.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.