Home / 212,704.39-318,755.80-117,976.31

Finding the Fourth Proportional to 212,704.39, 318,755.80 and 117,976.31

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Solution

The fourth proportional to 212,704.39, 318,755.80 and 117,976.31 is: 176,797.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,704.39 : 318,755.80 = 117,976.31 : x
  2. Step 2: Convert to fraction form
    212,704.39/318,755.80 = 117,976.31/x
  3. Step 3: Cross multiply
    212,704.39x = 318,755.80 × 117,976.31
  4. Step 4: Simplify right side
    212,704.39x = 37,605,633,075.10
  5. Step 5: Solve for x
    x = 37,605,633,075.10/212,704.39
  6. Step 6: Final answer
    x = 176,797.63

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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.