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Finding the Fourth Proportional to 95,540.40, 143,310.60 and 78,627.60

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Solution

The fourth proportional to 95,540.40, 143,310.60 and 78,627.60 is: 117,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,540.40 : 143,310.60 = 78,627.60 : x
  2. Step 2: Convert to fraction form
    95,540.40/143,310.60 = 78,627.60/x
  3. Step 3: Cross multiply
    95,540.40x = 143,310.60 × 78,627.60
  4. Step 4: Simplify right side
    95,540.40x = 11,268,168,532.56
  5. Step 5: Solve for x
    x = 11,268,168,532.56/95,540.40
  6. Step 6: Final answer
    x = 117,941.40

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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.