Home / 212,506.58-318,956.52-107,399.36

Finding the Fourth Proportional to 212,506.58, 318,956.52 and 107,399.36

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Solution

The fourth proportional to 212,506.58, 318,956.52 and 107,399.36 is: 161,198.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,506.58 : 318,956.52 = 107,399.36 : x
  2. Step 2: Convert to fraction form
    212,506.58/318,956.52 = 107,399.36/x
  3. Step 3: Cross multiply
    212,506.58x = 318,956.52 × 107,399.36
  4. Step 4: Simplify right side
    212,506.58x = 34,255,726,115.83
  5. Step 5: Solve for x
    x = 34,255,726,115.83/212,506.58
  6. Step 6: Final answer
    x = 161,198.43

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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.