Home / 117,631.92-176,348.68-51,021.88

Finding the Fourth Proportional to 117,631.92, 176,348.68 and 51,021.88

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Solution

The fourth proportional to 117,631.92, 176,348.68 and 51,021.88 is: 76,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,631.92 : 176,348.68 = 51,021.88 : x
  2. Step 2: Convert to fraction form
    117,631.92/176,348.68 = 51,021.88/x
  3. Step 3: Cross multiply
    117,631.92x = 176,348.68 × 51,021.88
  4. Step 4: Simplify right side
    117,631.92x = 8,997,641,189.12
  5. Step 5: Solve for x
    x = 8,997,641,189.12/117,631.92
  6. Step 6: Final answer
    x = 76,489.79

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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.