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Finding the Fourth Proportional to 203,799.93, 281,245.86 and 123,281.34

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Solution

The fourth proportional to 203,799.93, 281,245.86 and 123,281.34 is: 170,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,799.93 : 281,245.86 = 123,281.34 : x
  2. Step 2: Convert to fraction form
    203,799.93/281,245.86 = 123,281.34/x
  3. Step 3: Cross multiply
    203,799.93x = 281,245.86 × 123,281.34
  4. Step 4: Simplify right side
    203,799.93x = 34,672,366,490.25
  5. Step 5: Solve for x
    x = 34,672,366,490.25/203,799.93
  6. Step 6: Final answer
    x = 170,129.43

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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.