Home / 108,605.21-162,907.96-45,390.73

Finding the Fourth Proportional to 108,605.21, 162,907.96 and 45,390.73

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Solution

The fourth proportional to 108,605.21, 162,907.96 and 45,390.73 is: 68,086.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,605.21 : 162,907.96 = 45,390.73 : x
  2. Step 2: Convert to fraction form
    108,605.21/162,907.96 = 45,390.73/x
  3. Step 3: Cross multiply
    108,605.21x = 162,907.96 × 45,390.73
  4. Step 4: Simplify right side
    108,605.21x = 7,394,511,097.02
  5. Step 5: Solve for x
    x = 7,394,511,097.02/108,605.21
  6. Step 6: Final answer
    x = 68,086.16

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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.