Home / 117,648.74-162,346.73-66,662.48

Finding the Fourth Proportional to 117,648.74, 162,346.73 and 66,662.48

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Solution

The fourth proportional to 117,648.74, 162,346.73 and 66,662.48 is: 91,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,648.74 : 162,346.73 = 66,662.48 : x
  2. Step 2: Convert to fraction form
    117,648.74/162,346.73 = 66,662.48/x
  3. Step 3: Cross multiply
    117,648.74x = 162,346.73 × 66,662.48
  4. Step 4: Simplify right side
    117,648.74x = 10,822,434,496.64
  5. Step 5: Solve for x
    x = 10,822,434,496.64/117,648.74
  6. Step 6: Final answer
    x = 91,989.38

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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.