Home / 187,046.12-258,124.43-105,375.35

Finding the Fourth Proportional to 187,046.12, 258,124.43 and 105,375.35

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Solution

The fourth proportional to 187,046.12, 258,124.43 and 105,375.35 is: 145,418.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,046.12 : 258,124.43 = 105,375.35 : x
  2. Step 2: Convert to fraction form
    187,046.12/258,124.43 = 105,375.35/x
  3. Step 3: Cross multiply
    187,046.12x = 258,124.43 × 105,375.35
  4. Step 4: Simplify right side
    187,046.12x = 27,199,950,337.30
  5. Step 5: Solve for x
    x = 27,199,950,337.30/187,046.12
  6. Step 6: Final answer
    x = 145,418.42

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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.