Home / 187,238.78-258,326.43-106,609.28

Finding the Fourth Proportional to 187,238.78, 258,326.43 and 106,609.28

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Solution

The fourth proportional to 187,238.78, 258,326.43 and 106,609.28 is: 147,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,238.78 : 258,326.43 = 106,609.28 : x
  2. Step 2: Convert to fraction form
    187,238.78/258,326.43 = 106,609.28/x
  3. Step 3: Cross multiply
    187,238.78x = 258,326.43 × 106,609.28
  4. Step 4: Simplify right side
    187,238.78x = 27,539,994,707.27
  5. Step 5: Solve for x
    x = 27,539,994,707.27/187,238.78
  6. Step 6: Final answer
    x = 147,084.89

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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.