Home / 187,981.82-281,800.06-81,299.06

Finding the Fourth Proportional to 187,981.82, 281,800.06 and 81,299.06

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Solution

The fourth proportional to 187,981.82, 281,800.06 and 81,299.06 is: 121,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,981.82 : 281,800.06 = 81,299.06 : x
  2. Step 2: Convert to fraction form
    187,981.82/281,800.06 = 81,299.06/x
  3. Step 3: Cross multiply
    187,981.82x = 281,800.06 × 81,299.06
  4. Step 4: Simplify right side
    187,981.82x = 22,910,079,985.94
  5. Step 5: Solve for x
    x = 22,910,079,985.94/187,981.82
  6. Step 6: Final answer
    x = 121,873.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.