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Finding the Fourth Proportional to 85,370.40, 117,795.60 and 73,414.80

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Solution

The fourth proportional to 85,370.40, 117,795.60 and 73,414.80 is: 101,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,370.40 : 117,795.60 = 73,414.80 : x
  2. Step 2: Convert to fraction form
    85,370.40/117,795.60 = 73,414.80/x
  3. Step 3: Cross multiply
    85,370.40x = 117,795.60 × 73,414.80
  4. Step 4: Simplify right side
    85,370.40x = 8,647,940,414.88
  5. Step 5: Solve for x
    x = 8,647,940,414.88/85,370.40
  6. Step 6: Final answer
    x = 101,299.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.