Home / 117,764.39-176,579.66-80,369.76

Finding the Fourth Proportional to 117,764.39, 176,579.66 and 80,369.76

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Solution

The fourth proportional to 117,764.39, 176,579.66 and 80,369.76 is: 120,508.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,764.39 : 176,579.66 = 80,369.76 : x
  2. Step 2: Convert to fraction form
    117,764.39/176,579.66 = 80,369.76/x
  3. Step 3: Cross multiply
    117,764.39x = 176,579.66 × 80,369.76
  4. Step 4: Simplify right side
    117,764.39x = 14,191,665,096.01
  5. Step 5: Solve for x
    x = 14,191,665,096.01/117,764.39
  6. Step 6: Final answer
    x = 120,508.97

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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.