Home / 116,891.40-161,311.86-66,589.32

Finding the Fourth Proportional to 116,891.40, 161,311.86 and 66,589.32

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Solution

The fourth proportional to 116,891.40, 161,311.86 and 66,589.32 is: 91,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,891.40 : 161,311.86 = 66,589.32 : x
  2. Step 2: Convert to fraction form
    116,891.40/161,311.86 = 66,589.32/x
  3. Step 3: Cross multiply
    116,891.40x = 161,311.86 × 66,589.32
  4. Step 4: Simplify right side
    116,891.40x = 10,741,647,065.34
  5. Step 5: Solve for x
    x = 10,741,647,065.34/116,891.40
  6. Step 6: Final answer
    x = 91,894.25

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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.