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Finding the Fourth Proportional to 112,073.40, 168,201.90 and 111,198.60

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Solution

The fourth proportional to 112,073.40, 168,201.90 and 111,198.60 is: 166,888.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,073.40 : 168,201.90 = 111,198.60 : x
  2. Step 2: Convert to fraction form
    112,073.40/168,201.90 = 111,198.60/x
  3. Step 3: Cross multiply
    112,073.40x = 168,201.90 × 111,198.60
  4. Step 4: Simplify right side
    112,073.40x = 18,703,815,797.34
  5. Step 5: Solve for x
    x = 18,703,815,797.34/112,073.40
  6. Step 6: Final answer
    x = 166,888.98

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1.5x scale

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.