Home / 103,933.57-155,783.71-51,379.96

Finding the Fourth Proportional to 103,933.57, 155,783.71 and 51,379.96

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Solution

The fourth proportional to 103,933.57, 155,783.71 and 51,379.96 is: 77,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,933.57 : 155,783.71 = 51,379.96 : x
  2. Step 2: Convert to fraction form
    103,933.57/155,783.71 = 51,379.96/x
  3. Step 3: Cross multiply
    103,933.57x = 155,783.71 × 51,379.96
  4. Step 4: Simplify right side
    103,933.57x = 8,004,160,788.45
  5. Step 5: Solve for x
    x = 8,004,160,788.45/103,933.57
  6. Step 6: Final answer
    x = 77,012.28

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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.