Home / 203,623.66-281,165.75-127,231.75

Finding the Fourth Proportional to 203,623.66, 281,165.75 and 127,231.75

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Solution

The fourth proportional to 203,623.66, 281,165.75 and 127,231.75 is: 175,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,623.66 : 281,165.75 = 127,231.75 : x
  2. Step 2: Convert to fraction form
    203,623.66/281,165.75 = 127,231.75/x
  3. Step 3: Cross multiply
    203,623.66x = 281,165.75 × 127,231.75
  4. Step 4: Simplify right side
    203,623.66x = 35,773,209,776.40
  5. Step 5: Solve for x
    x = 35,773,209,776.40/203,623.66
  6. Step 6: Final answer
    x = 175,682.97

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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.