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Finding the Fourth Proportional to 110,803.80, 166,205.70 and 109,054.20

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Solution

The fourth proportional to 110,803.80, 166,205.70 and 109,054.20 is: 163,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,803.80 : 166,205.70 = 109,054.20 : x
  2. Step 2: Convert to fraction form
    110,803.80/166,205.70 = 109,054.20/x
  3. Step 3: Cross multiply
    110,803.80x = 166,205.70 × 109,054.20
  4. Step 4: Simplify right side
    110,803.80x = 18,125,429,648.94
  5. Step 5: Solve for x
    x = 18,125,429,648.94/110,803.80
  6. Step 6: Final answer
    x = 163,581.30

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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.