Home / 231,004.06-318,790.83-135,579.58

Finding the Fourth Proportional to 231,004.06, 318,790.83 and 135,579.58

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Solution

The fourth proportional to 231,004.06, 318,790.83 and 135,579.58 is: 187,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,004.06 : 318,790.83 = 135,579.58 : x
  2. Step 2: Convert to fraction form
    231,004.06/318,790.83 = 135,579.58/x
  3. Step 3: Cross multiply
    231,004.06x = 318,790.83 × 135,579.58
  4. Step 4: Simplify right side
    231,004.06x = 43,221,526,839.25
  5. Step 5: Solve for x
    x = 43,221,526,839.25/231,004.06
  6. Step 6: Final answer
    x = 187,102.89

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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.