Home / 203,963.40-281,456.10-113,312.52

Finding the Fourth Proportional to 203,963.40, 281,456.10 and 113,312.52

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Solution

The fourth proportional to 203,963.40, 281,456.10 and 113,312.52 is: 156,363.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,963.40 : 281,456.10 = 113,312.52 : x
  2. Step 2: Convert to fraction form
    203,963.40/281,456.10 = 113,312.52/x
  3. Step 3: Cross multiply
    203,963.40x = 281,456.10 × 113,312.52
  4. Step 4: Simplify right side
    203,963.40x = 31,892,499,960.37
  5. Step 5: Solve for x
    x = 31,892,499,960.37/203,963.40
  6. Step 6: Final answer
    x = 156,363.84

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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.