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Finding the Fourth Proportional to 111,713.32, 154,321.03 and 101,623.96

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Solution

The fourth proportional to 111,713.32, 154,321.03 and 101,623.96 is: 140,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,713.32 : 154,321.03 = 101,623.96 : x
  2. Step 2: Convert to fraction form
    111,713.32/154,321.03 = 101,623.96/x
  3. Step 3: Cross multiply
    111,713.32x = 154,321.03 × 101,623.96
  4. Step 4: Simplify right side
    111,713.32x = 15,682,714,179.88
  5. Step 5: Solve for x
    x = 15,682,714,179.88/111,713.32
  6. Step 6: Final answer
    x = 140,383.57

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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.