Home / 110,857.30-166,285.95-109,107.70

Finding the Fourth Proportional to 110,857.30, 166,285.95 and 109,107.70

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Solution

The fourth proportional to 110,857.30, 166,285.95 and 109,107.70 is: 163,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,857.30 : 166,285.95 = 109,107.70 : x
  2. Step 2: Convert to fraction form
    110,857.30/166,285.95 = 109,107.70/x
  3. Step 3: Cross multiply
    110,857.30x = 166,285.95 × 109,107.70
  4. Step 4: Simplify right side
    110,857.30x = 18,143,077,546.82
  5. Step 5: Solve for x
    x = 18,143,077,546.82/110,857.30
  6. Step 6: Final answer
    x = 163,661.55

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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.