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Finding the Fourth Proportional to 115,745.70, 173,676.15 and 45,627.30

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Solution

The fourth proportional to 115,745.70, 173,676.15 and 45,627.30 is: 68,463.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,745.70 : 173,676.15 = 45,627.30 : x
  2. Step 2: Convert to fraction form
    115,745.70/173,676.15 = 45,627.30/x
  3. Step 3: Cross multiply
    115,745.70x = 173,676.15 × 45,627.30
  4. Step 4: Simplify right side
    115,745.70x = 7,924,373,798.90
  5. Step 5: Solve for x
    x = 7,924,373,798.90/115,745.70
  6. Step 6: Final answer
    x = 68,463.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.