Home / 111,842.22-154,392.65-73,621.83

Finding the Fourth Proportional to 111,842.22, 154,392.65 and 73,621.83

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Solution

The fourth proportional to 111,842.22, 154,392.65 and 73,621.83 is: 101,631.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,842.22 : 154,392.65 = 73,621.83 : x
  2. Step 2: Convert to fraction form
    111,842.22/154,392.65 = 73,621.83/x
  3. Step 3: Cross multiply
    111,842.22x = 154,392.65 × 73,621.83
  4. Step 4: Simplify right side
    111,842.22x = 11,366,669,063.44
  5. Step 5: Solve for x
    x = 11,366,669,063.44/111,842.22
  6. Step 6: Final answer
    x = 101,631.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.