Home / 187,111.51-258,140.58-115,366.97

Finding the Fourth Proportional to 187,111.51, 258,140.58 and 115,366.97

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Solution

The fourth proportional to 187,111.51, 258,140.58 and 115,366.97 is: 159,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,111.51 : 258,140.58 = 115,366.97 : x
  2. Step 2: Convert to fraction form
    187,111.51/258,140.58 = 115,366.97/x
  3. Step 3: Cross multiply
    187,111.51x = 258,140.58 × 115,366.97
  4. Step 4: Simplify right side
    187,111.51x = 29,780,896,548.64
  5. Step 5: Solve for x
    x = 29,780,896,548.64/187,111.51
  6. Step 6: Final answer
    x = 159,161.22

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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.