Home / 187,144.34-258,185.95-115,399.80

Finding the Fourth Proportional to 187,144.34, 258,185.95 and 115,399.80

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Solution

The fourth proportional to 187,144.34, 258,185.95 and 115,399.80 is: 159,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,144.34 : 258,185.95 = 115,399.80 : x
  2. Step 2: Convert to fraction form
    187,144.34/258,185.95 = 115,399.80/x
  3. Step 3: Cross multiply
    187,144.34x = 258,185.95 × 115,399.80
  4. Step 4: Simplify right side
    187,144.34x = 29,794,606,704.31
  5. Step 5: Solve for x
    x = 29,794,606,704.31/187,144.34
  6. Step 6: Final answer
    x = 159,206.56

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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.