Home / 125,021.66-187,610.25-91,228.46

Finding the Fourth Proportional to 125,021.66, 187,610.25 and 91,228.46

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Solution

The fourth proportional to 125,021.66, 187,610.25 and 91,228.46 is: 136,899.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,021.66 : 187,610.25 = 91,228.46 : x
  2. Step 2: Convert to fraction form
    125,021.66/187,610.25 = 91,228.46/x
  3. Step 3: Cross multiply
    125,021.66x = 187,610.25 × 91,228.46
  4. Step 4: Simplify right side
    125,021.66x = 17,115,394,187.72
  5. Step 5: Solve for x
    x = 17,115,394,187.72/125,021.66
  6. Step 6: Final answer
    x = 136,899.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.