Home / 149,661.96-206,538.33-85,129.53

Finding the Fourth Proportional to 149,661.96, 206,538.33 and 85,129.53

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Solution

The fourth proportional to 149,661.96, 206,538.33 and 85,129.53 is: 117,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,661.96 : 206,538.33 = 85,129.53 : x
  2. Step 2: Convert to fraction form
    149,661.96/206,538.33 = 85,129.53/x
  3. Step 3: Cross multiply
    149,661.96x = 206,538.33 × 85,129.53
  4. Step 4: Simplify right side
    149,661.96x = 17,582,510,959.88
  5. Step 5: Solve for x
    x = 17,582,510,959.88/149,661.96
  6. Step 6: Final answer
    x = 117,481.50

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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.