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Finding the Fourth Proportional to 168,112.40, 252,168.60 and 156,302.60

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Solution

The fourth proportional to 168,112.40, 252,168.60 and 156,302.60 is: 234,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,112.40 : 252,168.60 = 156,302.60 : x
  2. Step 2: Convert to fraction form
    168,112.40/252,168.60 = 156,302.60/x
  3. Step 3: Cross multiply
    168,112.40x = 252,168.60 × 156,302.60
  4. Step 4: Simplify right side
    168,112.40x = 39,414,607,818.36
  5. Step 5: Solve for x
    x = 39,414,607,818.36/168,112.40
  6. Step 6: Final answer
    x = 234,453.90

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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.