Home / 117,008.30-161,470.44-66,021.41

Finding the Fourth Proportional to 117,008.30, 161,470.44 and 66,021.41

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Solution

The fourth proportional to 117,008.30, 161,470.44 and 66,021.41 is: 91,108.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008.30 : 161,470.44 = 66,021.41 : x
  2. Step 2: Convert to fraction form
    117,008.30/161,470.44 = 66,021.41/x
  3. Step 3: Cross multiply
    117,008.30x = 161,470.44 × 66,021.41
  4. Step 4: Simplify right side
    117,008.30x = 10,660,505,314.77
  5. Step 5: Solve for x
    x = 10,660,505,314.77/117,008.30
  6. Step 6: Final answer
    x = 91,108.97

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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.