Home / 187,672.18-258,983.85-102,788.50

Finding the Fourth Proportional to 187,672.18, 258,983.85 and 102,788.50

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Solution

The fourth proportional to 187,672.18, 258,983.85 and 102,788.50 is: 141,846.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,672.18 : 258,983.85 = 102,788.50 : x
  2. Step 2: Convert to fraction form
    187,672.18/258,983.85 = 102,788.50/x
  3. Step 3: Cross multiply
    187,672.18x = 258,983.85 × 102,788.50
  4. Step 4: Simplify right side
    187,672.18x = 26,620,561,465.73
  5. Step 5: Solve for x
    x = 26,620,561,465.73/187,672.18
  6. Step 6: Final answer
    x = 141,846.07

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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.