Home / 117,242.89-161,804.66-66,266.25

Finding the Fourth Proportional to 117,242.89, 161,804.66 and 66,266.25

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Solution

The fourth proportional to 117,242.89, 161,804.66 and 66,266.25 is: 91,452.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,242.89 : 161,804.66 = 66,266.25 : x
  2. Step 2: Convert to fraction form
    117,242.89/161,804.66 = 66,266.25/x
  3. Step 3: Cross multiply
    117,242.89x = 161,804.66 × 66,266.25
  4. Step 4: Simplify right side
    117,242.89x = 10,722,188,581.90
  5. Step 5: Solve for x
    x = 10,722,188,581.90/117,242.89
  6. Step 6: Final answer
    x = 91,452.78

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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.