Home / 116,917.68-161,307-66,581.04

Finding the Fourth Proportional to 116,917.68, 161,307 and 66,581.04

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Solution

The fourth proportional to 116,917.68, 161,307 and 66,581.04 is: 91,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,917.68 : 161,307 = 66,581.04 : x
  2. Step 2: Convert to fraction form
    116,917.68/161,307 = 66,581.04/x
  3. Step 3: Cross multiply
    116,917.68x = 161,307 × 66,581.04
  4. Step 4: Simplify right side
    116,917.68x = 10,739,987,819.28
  5. Step 5: Solve for x
    x = 10,739,987,819.28/116,917.68
  6. Step 6: Final answer
    x = 91,859.40

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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.