Home / 76,606.20-115,103.70-68,052.60

Finding the Fourth Proportional to 76,606.20, 115,103.70 and 68,052.60

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Solution

The fourth proportional to 76,606.20, 115,103.70 and 68,052.60 is: 102,251.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,606.20 : 115,103.70 = 68,052.60 : x
  2. Step 2: Convert to fraction form
    76,606.20/115,103.70 = 68,052.60/x
  3. Step 3: Cross multiply
    76,606.20x = 115,103.70 × 68,052.60
  4. Step 4: Simplify right side
    76,606.20x = 7,833,106,054.62
  5. Step 5: Solve for x
    x = 7,833,106,054.62/76,606.20
  6. Step 6: Final answer
    x = 102,251.59

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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.