Home / 116,786.76-161,165.91-66,485.76

Finding the Fourth Proportional to 116,786.76, 161,165.91 and 66,485.76

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Solution

The fourth proportional to 116,786.76, 161,165.91 and 66,485.76 is: 91,750.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,786.76 : 161,165.91 = 66,485.76 : x
  2. Step 2: Convert to fraction form
    116,786.76/161,165.91 = 66,485.76/x
  3. Step 3: Cross multiply
    116,786.76x = 161,165.91 × 66,485.76
  4. Step 4: Simplify right side
    116,786.76x = 10,715,238,012.44
  5. Step 5: Solve for x
    x = 10,715,238,012.44/116,786.76
  6. Step 6: Final answer
    x = 91,750.45

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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.