Home / 231,098.97-318,918.69-135,607.26

Finding the Fourth Proportional to 231,098.97, 318,918.69 and 135,607.26

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Solution

The fourth proportional to 231,098.97, 318,918.69 and 135,607.26 is: 187,139.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,098.97 : 318,918.69 = 135,607.26 : x
  2. Step 2: Convert to fraction form
    231,098.97/318,918.69 = 135,607.26/x
  3. Step 3: Cross multiply
    231,098.97x = 318,918.69 × 135,607.26
  4. Step 4: Simplify right side
    231,098.97x = 43,247,689,713.69
  5. Step 5: Solve for x
    x = 43,247,689,713.69/231,098.97
  6. Step 6: Final answer
    x = 187,139.26

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1.5x scale

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.