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Finding the Fourth Proportional to 168,087.60, 252,131.40 and 166,921.20

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Solution

The fourth proportional to 168,087.60, 252,131.40 and 166,921.20 is: 250,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,087.60 : 252,131.40 = 166,921.20 : x
  2. Step 2: Convert to fraction form
    168,087.60/252,131.40 = 166,921.20/x
  3. Step 3: Cross multiply
    168,087.60x = 252,131.40 × 166,921.20
  4. Step 4: Simplify right side
    168,087.60x = 42,086,075,845.68
  5. Step 5: Solve for x
    x = 42,086,075,845.68/168,087.60
  6. Step 6: Final answer
    x = 250,381.80

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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.