Home / 116,532.36-160,815.78-66,231.72

Finding the Fourth Proportional to 116,532.36, 160,815.78 and 66,231.72

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Solution

The fourth proportional to 116,532.36, 160,815.78 and 66,231.72 is: 91,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,532.36 : 160,815.78 = 66,231.72 : x
  2. Step 2: Convert to fraction form
    116,532.36/160,815.78 = 66,231.72/x
  3. Step 3: Cross multiply
    116,532.36x = 160,815.78 × 66,231.72
  4. Step 4: Simplify right side
    116,532.36x = 10,651,105,712.54
  5. Step 5: Solve for x
    x = 10,651,105,712.54/116,532.36
  6. Step 6: Final answer
    x = 91,400.41

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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.