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Finding the Fourth Proportional to 168,069.40, 252,104.10 and 130,015.60

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Solution

The fourth proportional to 168,069.40, 252,104.10 and 130,015.60 is: 195,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,069.40 : 252,104.10 = 130,015.60 : x
  2. Step 2: Convert to fraction form
    168,069.40/252,104.10 = 130,015.60/x
  3. Step 3: Cross multiply
    168,069.40x = 252,104.10 × 130,015.60
  4. Step 4: Simplify right side
    168,069.40x = 32,777,465,823.96
  5. Step 5: Solve for x
    x = 32,777,465,823.96/168,069.40
  6. Step 6: Final answer
    x = 195,023.40

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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.