Home / 103,467.19-155,212.93-36,916.78

Finding the Fourth Proportional to 103,467.19, 155,212.93 and 36,916.78

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Solution

The fourth proportional to 103,467.19, 155,212.93 and 36,916.78 is: 55,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,467.19 : 155,212.93 = 36,916.78 : x
  2. Step 2: Convert to fraction form
    103,467.19/155,212.93 = 36,916.78/x
  3. Step 3: Cross multiply
    103,467.19x = 155,212.93 × 36,916.78
  4. Step 4: Simplify right side
    103,467.19x = 5,729,961,589.97
  5. Step 5: Solve for x
    x = 5,729,961,589.97/103,467.19
  6. Step 6: Final answer
    x = 55,379.50

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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.