Home / 107,712.37-148,546.30-67,429.80

Finding the Fourth Proportional to 107,712.37, 148,546.30 and 67,429.80

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Solution

The fourth proportional to 107,712.37, 148,546.30 and 67,429.80 is: 92,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,712.37 : 148,546.30 = 67,429.80 : x
  2. Step 2: Convert to fraction form
    107,712.37/148,546.30 = 67,429.80/x
  3. Step 3: Cross multiply
    107,712.37x = 148,546.30 × 67,429.80
  4. Step 4: Simplify right side
    107,712.37x = 10,016,447,299.74
  5. Step 5: Solve for x
    x = 10,016,447,299.74/107,712.37
  6. Step 6: Final answer
    x = 92,992.54

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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.