Home / 122,520.20-183,537.30-107,907.80

Finding the Fourth Proportional to 122,520.20, 183,537.30 and 107,907.80

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Solution

The fourth proportional to 122,520.20, 183,537.30 and 107,907.80 is: 161,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,520.20 : 183,537.30 = 107,907.80 : x
  2. Step 2: Convert to fraction form
    122,520.20/183,537.30 = 107,907.80/x
  3. Step 3: Cross multiply
    122,520.20x = 183,537.30 × 107,907.80
  4. Step 4: Simplify right side
    122,520.20x = 19,805,106,260.94
  5. Step 5: Solve for x
    x = 19,805,106,260.94/122,520.20
  6. Step 6: Final answer
    x = 161,647.68

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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.