Home / 187,393.30-258,605.13-102,511.78

Finding the Fourth Proportional to 187,393.30, 258,605.13 and 102,511.78

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Solution

The fourth proportional to 187,393.30, 258,605.13 and 102,511.78 is: 141,467.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,393.30 : 258,605.13 = 102,511.78 : x
  2. Step 2: Convert to fraction form
    187,393.30/258,605.13 = 102,511.78/x
  3. Step 3: Cross multiply
    187,393.30x = 258,605.13 × 102,511.78
  4. Step 4: Simplify right side
    187,393.30x = 26,510,072,193.43
  5. Step 5: Solve for x
    x = 26,510,072,193.43/187,393.30
  6. Step 6: Final answer
    x = 141,467.56

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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.