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Finding the Fourth Proportional to 110,499.60, 165,749.40 and 40,369.80

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Solution

The fourth proportional to 110,499.60, 165,749.40 and 40,369.80 is: 60,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,499.60 : 165,749.40 = 40,369.80 : x
  2. Step 2: Convert to fraction form
    110,499.60/165,749.40 = 40,369.80/x
  3. Step 3: Cross multiply
    110,499.60x = 165,749.40 × 40,369.80
  4. Step 4: Simplify right side
    110,499.60x = 6,691,270,128.12
  5. Step 5: Solve for x
    x = 6,691,270,128.12/110,499.60
  6. Step 6: Final answer
    x = 60,554.70

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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.