Home / 187,664.88-258,983.68-102,786.56

Finding the Fourth Proportional to 187,664.88, 258,983.68 and 102,786.56

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Solution

The fourth proportional to 187,664.88, 258,983.68 and 102,786.56 is: 141,848.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,664.88 : 258,983.68 = 102,786.56 : x
  2. Step 2: Convert to fraction form
    187,664.88/258,983.68 = 102,786.56/x
  3. Step 3: Cross multiply
    187,664.88x = 258,983.68 × 102,786.56
  4. Step 4: Simplify right side
    187,664.88x = 26,620,041,563.34
  5. Step 5: Solve for x
    x = 26,620,041,563.34/187,664.88
  6. Step 6: Final answer
    x = 141,848.82

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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.