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Finding the Fourth Proportional to 168,014.40, 252,021.60 and 43,355.40

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Solution

The fourth proportional to 168,014.40, 252,021.60 and 43,355.40 is: 65,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,014.40 : 252,021.60 = 43,355.40 : x
  2. Step 2: Convert to fraction form
    168,014.40/252,021.60 = 43,355.40/x
  3. Step 3: Cross multiply
    168,014.40x = 252,021.60 × 43,355.40
  4. Step 4: Simplify right side
    168,014.40x = 10,926,497,276.64
  5. Step 5: Solve for x
    x = 10,926,497,276.64/168,014.40
  6. Step 6: Final answer
    x = 65,033.10

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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.