Home / 131,918.60-197,732.10-72,796.70

Finding the Fourth Proportional to 131,918.60, 197,732.10 and 72,796.70

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Solution

The fourth proportional to 131,918.60, 197,732.10 and 72,796.70 is: 109,114.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,918.60 : 197,732.10 = 72,796.70 : x
  2. Step 2: Convert to fraction form
    131,918.60/197,732.10 = 72,796.70/x
  3. Step 3: Cross multiply
    131,918.60x = 197,732.10 × 72,796.70
  4. Step 4: Simplify right side
    131,918.60x = 14,394,244,364.07
  5. Step 5: Solve for x
    x = 14,394,244,364.07/131,918.60
  6. Step 6: Final answer
    x = 109,114.59

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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.