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Finding the Fourth Proportional to 115,336.58, 159,170.01 and 65,034.50

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Solution

The fourth proportional to 115,336.58, 159,170.01 and 65,034.50 is: 89,750.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336.58 : 159,170.01 = 65,034.50 : x
  2. Step 2: Convert to fraction form
    115,336.58/159,170.01 = 65,034.50/x
  3. Step 3: Cross multiply
    115,336.58x = 159,170.01 × 65,034.50
  4. Step 4: Simplify right side
    115,336.58x = 10,351,542,015.35
  5. Step 5: Solve for x
    x = 10,351,542,015.35/115,336.58
  6. Step 6: Final answer
    x = 89,750.73

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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.