Home / 116,954.68-161,357.94-66,618.04

Finding the Fourth Proportional to 116,954.68, 161,357.94 and 66,618.04

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Solution

The fourth proportional to 116,954.68, 161,357.94 and 66,618.04 is: 91,910.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,954.68 : 161,357.94 = 66,618.04 : x
  2. Step 2: Convert to fraction form
    116,954.68/161,357.94 = 66,618.04/x
  3. Step 3: Cross multiply
    116,954.68x = 161,357.94 × 66,618.04
  4. Step 4: Simplify right side
    116,954.68x = 10,749,349,701.24
  5. Step 5: Solve for x
    x = 10,749,349,701.24/116,954.68
  6. Step 6: Final answer
    x = 91,910.39

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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.