Home / 117,164.07-161,700.71-66,179.03

Finding the Fourth Proportional to 117,164.07, 161,700.71 and 66,179.03

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Solution

The fourth proportional to 117,164.07, 161,700.71 and 66,179.03 is: 91,335.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,164.07 : 161,700.71 = 66,179.03 : x
  2. Step 2: Convert to fraction form
    117,164.07/161,700.71 = 66,179.03/x
  3. Step 3: Cross multiply
    117,164.07x = 161,700.71 × 66,179.03
  4. Step 4: Simplify right side
    117,164.07x = 10,701,194,998.71
  5. Step 5: Solve for x
    x = 10,701,194,998.71/117,164.07
  6. Step 6: Final answer
    x = 91,335.13

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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.