Home / 203,705.72-281,127.03-113,061.69

Finding the Fourth Proportional to 203,705.72, 281,127.03 and 113,061.69

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Solution

The fourth proportional to 203,705.72, 281,127.03 and 113,061.69 is: 156,032.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,705.72 : 281,127.03 = 113,061.69 : x
  2. Step 2: Convert to fraction form
    203,705.72/281,127.03 = 113,061.69/x
  3. Step 3: Cross multiply
    203,705.72x = 281,127.03 × 113,061.69
  4. Step 4: Simplify right side
    203,705.72x = 31,784,697,116.48
  5. Step 5: Solve for x
    x = 31,784,697,116.48/203,705.72
  6. Step 6: Final answer
    x = 156,032.42

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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.