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Finding the Fourth Proportional to 111,125.49, 166,797.59 and 81,458.84

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Solution

The fourth proportional to 111,125.49, 166,797.59 and 81,458.84 is: 122,268.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,125.49 : 166,797.59 = 81,458.84 : x
  2. Step 2: Convert to fraction form
    111,125.49/166,797.59 = 81,458.84/x
  3. Step 3: Cross multiply
    111,125.49x = 166,797.59 × 81,458.84
  4. Step 4: Simplify right side
    111,125.49x = 13,587,136,954.91
  5. Step 5: Solve for x
    x = 13,587,136,954.91/111,125.49
  6. Step 6: Final answer
    x = 122,268.41

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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.