Home / 131,748.41-197,235.03-81,667.73

Finding the Fourth Proportional to 131,748.41, 197,235.03 and 81,667.73

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Solution

The fourth proportional to 131,748.41, 197,235.03 and 81,667.73 is: 122,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,748.41 : 197,235.03 = 81,667.73 : x
  2. Step 2: Convert to fraction form
    131,748.41/197,235.03 = 81,667.73/x
  3. Step 3: Cross multiply
    131,748.41x = 197,235.03 × 81,667.73
  4. Step 4: Simplify right side
    131,748.41x = 16,107,737,176.58
  5. Step 5: Solve for x
    x = 16,107,737,176.58/131,748.41
  6. Step 6: Final answer
    x = 122,261.34

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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.