Home / 103,828.53-155,633.45-53,855.58

Finding the Fourth Proportional to 103,828.53, 155,633.45 and 53,855.58

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Solution

The fourth proportional to 103,828.53, 155,633.45 and 53,855.58 is: 80,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,828.53 : 155,633.45 = 53,855.58 : x
  2. Step 2: Convert to fraction form
    103,828.53/155,633.45 = 53,855.58/x
  3. Step 3: Cross multiply
    103,828.53x = 155,633.45 × 53,855.58
  4. Step 4: Simplify right side
    103,828.53x = 8,381,729,447.87
  5. Step 5: Solve for x
    x = 8,381,729,447.87/103,828.53
  6. Step 6: Final answer
    x = 80,726.65

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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.