Home / 187,821.94-281,765.72-82,638.17

Finding the Fourth Proportional to 187,821.94, 281,765.72 and 82,638.17

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Solution

The fourth proportional to 187,821.94, 281,765.72 and 82,638.17 is: 123,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,821.94 : 281,765.72 = 82,638.17 : x
  2. Step 2: Convert to fraction form
    187,821.94/281,765.72 = 82,638.17/x
  3. Step 3: Cross multiply
    187,821.94x = 281,765.72 × 82,638.17
  4. Step 4: Simplify right side
    187,821.94x = 23,284,604,444.01
  5. Step 5: Solve for x
    x = 23,284,604,444.01/187,821.94
  6. Step 6: Final answer
    x = 123,971.70

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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.