Home / 117,360.28-161,939.82-66,359.44

Finding the Fourth Proportional to 117,360.28, 161,939.82 and 66,359.44

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Solution

The fourth proportional to 117,360.28, 161,939.82 and 66,359.44 is: 91,566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,360.28 : 161,939.82 = 66,359.44 : x
  2. Step 2: Convert to fraction form
    117,360.28/161,939.82 = 66,359.44/x
  3. Step 3: Cross multiply
    117,360.28x = 161,939.82 × 66,359.44
  4. Step 4: Simplify right side
    117,360.28x = 10,746,235,768.90
  5. Step 5: Solve for x
    x = 10,746,235,768.90/117,360.28
  6. Step 6: Final answer
    x = 91,566.21

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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.