Home / 117,704.88-162,499.68-77,535.36

Finding the Fourth Proportional to 117,704.88, 162,499.68 and 77,535.36

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Solution

The fourth proportional to 117,704.88, 162,499.68 and 77,535.36 is: 107,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,704.88 : 162,499.68 = 77,535.36 : x
  2. Step 2: Convert to fraction form
    117,704.88/162,499.68 = 77,535.36/x
  3. Step 3: Cross multiply
    117,704.88x = 162,499.68 × 77,535.36
  4. Step 4: Simplify right side
    117,704.88x = 12,599,471,188.68
  5. Step 5: Solve for x
    x = 12,599,471,188.68/117,704.88
  6. Step 6: Final answer
    x = 107,042.90

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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.