Home / 117,323.11-161,904.91-66,345.85

Finding the Fourth Proportional to 117,323.11, 161,904.91 and 66,345.85

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Solution

The fourth proportional to 117,323.11, 161,904.91 and 66,345.85 is: 91,556.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,323.11 : 161,904.91 = 66,345.85 : x
  2. Step 2: Convert to fraction form
    117,323.11/161,904.91 = 66,345.85/x
  3. Step 3: Cross multiply
    117,323.11x = 161,904.91 × 66,345.85
  4. Step 4: Simplify right side
    117,323.11x = 10,741,718,873.12
  5. Step 5: Solve for x
    x = 10,741,718,873.12/117,323.11
  6. Step 6: Final answer
    x = 91,556.72

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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.