Home / 117,389.33-161,997.27-66,400.97

Finding the Fourth Proportional to 117,389.33, 161,997.27 and 66,400.97

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Solution

The fourth proportional to 117,389.33, 161,997.27 and 66,400.97 is: 91,633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,389.33 : 161,997.27 = 66,400.97 : x
  2. Step 2: Convert to fraction form
    117,389.33/161,997.27 = 66,400.97/x
  3. Step 3: Cross multiply
    117,389.33x = 161,997.27 × 66,400.97
  4. Step 4: Simplify right side
    117,389.33x = 10,756,774,806.36
  5. Step 5: Solve for x
    x = 10,756,774,806.36/117,389.33
  6. Step 6: Final answer
    x = 91,633.33

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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.