Home / 103,385.85-155,063.79-33,256.05

Finding the Fourth Proportional to 103,385.85, 155,063.79 and 33,256.05

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Solution

The fourth proportional to 103,385.85, 155,063.79 and 33,256.05 is: 49,879.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,385.85 : 155,063.79 = 33,256.05 : x
  2. Step 2: Convert to fraction form
    103,385.85/155,063.79 = 33,256.05/x
  3. Step 3: Cross multiply
    103,385.85x = 155,063.79 × 33,256.05
  4. Step 4: Simplify right side
    103,385.85x = 5,156,809,153.43
  5. Step 5: Solve for x
    x = 5,156,809,153.43/103,385.85
  6. Step 6: Final answer
    x = 49,879.25

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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.