Home / 111,937.37-167,905.88-76,770.41

Finding the Fourth Proportional to 111,937.37, 167,905.88 and 76,770.41

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Solution

The fourth proportional to 111,937.37, 167,905.88 and 76,770.41 is: 115,155.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,937.37 : 167,905.88 = 76,770.41 : x
  2. Step 2: Convert to fraction form
    111,937.37/167,905.88 = 76,770.41/x
  3. Step 3: Cross multiply
    111,937.37x = 167,905.88 × 76,770.41
  4. Step 4: Simplify right side
    111,937.37x = 12,890,202,865.16
  5. Step 5: Solve for x
    x = 12,890,202,865.16/111,937.37
  6. Step 6: Final answer
    x = 115,155.49

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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.