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Finding the Fourth Proportional to 168,609.60, 252,914.40 and 84,628.80

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Solution

The fourth proportional to 168,609.60, 252,914.40 and 84,628.80 is: 126,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,609.60 : 252,914.40 = 84,628.80 : x
  2. Step 2: Convert to fraction form
    168,609.60/252,914.40 = 84,628.80/x
  3. Step 3: Cross multiply
    168,609.60x = 252,914.40 × 84,628.80
  4. Step 4: Simplify right side
    168,609.60x = 21,403,842,174.72
  5. Step 5: Solve for x
    x = 21,403,842,174.72/168,609.60
  6. Step 6: Final answer
    x = 126,943.20

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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.