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Finding the Fourth Proportional to 115,408.60, 173,126.40 and 36,530.80

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Solution

The fourth proportional to 115,408.60, 173,126.40 and 36,530.80 is: 54,800.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,408.60 : 173,126.40 = 36,530.80 : x
  2. Step 2: Convert to fraction form
    115,408.60/173,126.40 = 36,530.80/x
  3. Step 3: Cross multiply
    115,408.60x = 173,126.40 × 36,530.80
  4. Step 4: Simplify right side
    115,408.60x = 6,324,445,893.12
  5. Step 5: Solve for x
    x = 6,324,445,893.12/115,408.60
  6. Step 6: Final answer
    x = 54,800.47

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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.