Home / 103,682.62-155,505.09-28,783.94

Finding the Fourth Proportional to 103,682.62, 155,505.09 and 28,783.94

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Solution

The fourth proportional to 103,682.62, 155,505.09 and 28,783.94 is: 43,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,682.62 : 155,505.09 = 28,783.94 : x
  2. Step 2: Convert to fraction form
    103,682.62/155,505.09 = 28,783.94/x
  3. Step 3: Cross multiply
    103,682.62x = 155,505.09 × 28,783.94
  4. Step 4: Simplify right side
    103,682.62x = 4,476,049,180.25
  5. Step 5: Solve for x
    x = 4,476,049,180.25/103,682.62
  6. Step 6: Final answer
    x = 43,170.68

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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.