Home / 203,642.72-281,028.50-112,999.04

Finding the Fourth Proportional to 203,642.72, 281,028.50 and 112,999.04

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Solution

The fourth proportional to 203,642.72, 281,028.50 and 112,999.04 is: 155,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,642.72 : 281,028.50 = 112,999.04 : x
  2. Step 2: Convert to fraction form
    203,642.72/281,028.50 = 112,999.04/x
  3. Step 3: Cross multiply
    203,642.72x = 281,028.50 × 112,999.04
  4. Step 4: Simplify right side
    203,642.72x = 31,755,950,712.64
  5. Step 5: Solve for x
    x = 31,755,950,712.64/203,642.72
  6. Step 6: Final answer
    x = 155,939.53

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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.