Home / 116,714.64-161,080.56-66,403.92

Finding the Fourth Proportional to 116,714.64, 161,080.56 and 66,403.92

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Solution

The fourth proportional to 116,714.64, 161,080.56 and 66,403.92 is: 91,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,714.64 : 161,080.56 = 66,403.92 : x
  2. Step 2: Convert to fraction form
    116,714.64/161,080.56 = 66,403.92/x
  3. Step 3: Cross multiply
    116,714.64x = 161,080.56 × 66,403.92
  4. Step 4: Simplify right side
    116,714.64x = 10,696,380,619.80
  5. Step 5: Solve for x
    x = 10,696,380,619.80/116,714.64
  6. Step 6: Final answer
    x = 91,645.58

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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.