Home / 187,110.51-258,139.20-115,365.97

Finding the Fourth Proportional to 187,110.51, 258,139.20 and 115,365.97

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Solution

The fourth proportional to 187,110.51, 258,139.20 and 115,365.97 is: 159,159.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,110.51 : 258,139.20 = 115,365.97 : x
  2. Step 2: Convert to fraction form
    187,110.51/258,139.20 = 115,365.97/x
  3. Step 3: Cross multiply
    187,110.51x = 258,139.20 × 115,365.97
  4. Step 4: Simplify right side
    187,110.51x = 29,780,479,203.02
  5. Step 5: Solve for x
    x = 29,780,479,203.02/187,110.51
  6. Step 6: Final answer
    x = 159,159.84

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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.