Home / 120,780.48-166,673.86-67,064.12

Finding the Fourth Proportional to 120,780.48, 166,673.86 and 67,064.12

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Solution

The fourth proportional to 120,780.48, 166,673.86 and 67,064.12 is: 92,546.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,780.48 : 166,673.86 = 67,064.12 : x
  2. Step 2: Convert to fraction form
    120,780.48/166,673.86 = 67,064.12/x
  3. Step 3: Cross multiply
    120,780.48x = 166,673.86 × 67,064.12
  4. Step 4: Simplify right side
    120,780.48x = 11,177,835,747.90
  5. Step 5: Solve for x
    x = 11,177,835,747.90/120,780.48
  6. Step 6: Final answer
    x = 92,546.71

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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.