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Finding the Fourth Proportional to 166,008, 229,091.04 and 90,556.80

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Solution

The fourth proportional to 166,008, 229,091.04 and 90,556.80 is: 124,968.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,008 : 229,091.04 = 90,556.80 : x
  2. Step 2: Convert to fraction form
    166,008/229,091.04 = 90,556.80/x
  3. Step 3: Cross multiply
    166,008x = 229,091.04 × 90,556.80
  4. Step 4: Simplify right side
    166,008x = 20,745,751,491.07
  5. Step 5: Solve for x
    x = 20,745,751,491.07/166,008
  6. Step 6: Final answer
    x = 124,968.38

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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.