Home / 117,005.53-161,453.72-66,015.33

Finding the Fourth Proportional to 117,005.53, 161,453.72 and 66,015.33

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Solution

The fourth proportional to 117,005.53, 161,453.72 and 66,015.33 is: 91,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,005.53 : 161,453.72 = 66,015.33 : x
  2. Step 2: Convert to fraction form
    117,005.53/161,453.72 = 66,015.33/x
  3. Step 3: Cross multiply
    117,005.53x = 161,453.72 × 66,015.33
  4. Step 4: Simplify right side
    117,005.53x = 10,658,420,605.53
  5. Step 5: Solve for x
    x = 10,658,420,605.53/117,005.53
  6. Step 6: Final answer
    x = 91,093.31

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1.5x scale

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.