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Finding the Fourth Proportional to 131,809.23, 197,774.07 and 71,747.73

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Solution

The fourth proportional to 131,809.23, 197,774.07 and 71,747.73 is: 107,654.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,809.23 : 197,774.07 = 71,747.73 : x
  2. Step 2: Convert to fraction form
    131,809.23/197,774.07 = 71,747.73/x
  3. Step 3: Cross multiply
    131,809.23x = 197,774.07 × 71,747.73
  4. Step 4: Simplify right side
    131,809.23x = 14,189,840,575.36
  5. Step 5: Solve for x
    x = 14,189,840,575.36/131,809.23
  6. Step 6: Final answer
    x = 107,654.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.