Home / 120,788.32-166,682.28-67,076.76

Finding the Fourth Proportional to 120,788.32, 166,682.28 and 67,076.76

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Solution

The fourth proportional to 120,788.32, 166,682.28 and 67,076.76 is: 92,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,788.32 : 166,682.28 = 67,076.76 : x
  2. Step 2: Convert to fraction form
    120,788.32/166,682.28 = 67,076.76/x
  3. Step 3: Cross multiply
    120,788.32x = 166,682.28 × 67,076.76
  4. Step 4: Simplify right side
    120,788.32x = 11,180,507,291.81
  5. Step 5: Solve for x
    x = 11,180,507,291.81/120,788.32
  6. Step 6: Final answer
    x = 92,562.82

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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.