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Finding the Fourth Proportional to 203,702.15, 281,123.17 and 134,671.68

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Solution

The fourth proportional to 203,702.15, 281,123.17 and 134,671.68 is: 185,856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,702.15 : 281,123.17 = 134,671.68 : x
  2. Step 2: Convert to fraction form
    203,702.15/281,123.17 = 134,671.68/x
  3. Step 3: Cross multiply
    203,702.15x = 281,123.17 × 134,671.68
  4. Step 4: Simplify right side
    203,702.15x = 37,859,329,224.70
  5. Step 5: Solve for x
    x = 37,859,329,224.70/203,702.15
  6. Step 6: Final answer
    x = 185,856.31

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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.