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Finding the Fourth Proportional to 203,687.87, 281,123.04 and 118,804.92

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Solution

The fourth proportional to 203,687.87, 281,123.04 and 118,804.92 is: 163,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,687.87 : 281,123.04 = 118,804.92 : x
  2. Step 2: Convert to fraction form
    203,687.87/281,123.04 = 118,804.92/x
  3. Step 3: Cross multiply
    203,687.87x = 281,123.04 × 118,804.92
  4. Step 4: Simplify right side
    203,687.87x = 33,398,800,277.36
  5. Step 5: Solve for x
    x = 33,398,800,277.36/203,687.87
  6. Step 6: Final answer
    x = 163,970.50

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1.5x scale

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.