Home / 187,112.51-258,141.96-115,367.97

Finding the Fourth Proportional to 187,112.51, 258,141.96 and 115,367.97

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Solution

The fourth proportional to 187,112.51, 258,141.96 and 115,367.97 is: 159,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,112.51 : 258,141.96 = 115,367.97 : x
  2. Step 2: Convert to fraction form
    187,112.51/258,141.96 = 115,367.97/x
  3. Step 3: Cross multiply
    187,112.51x = 258,141.96 × 115,367.97
  4. Step 4: Simplify right side
    187,112.51x = 29,781,313,897.02
  5. Step 5: Solve for x
    x = 29,781,313,897.02/187,112.51
  6. Step 6: Final answer
    x = 159,162.60

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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.