Home / 131,996.70-197,995.05-72,801.90

Finding the Fourth Proportional to 131,996.70, 197,995.05 and 72,801.90

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Solution

The fourth proportional to 131,996.70, 197,995.05 and 72,801.90 is: 109,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,996.70 : 197,995.05 = 72,801.90 : x
  2. Step 2: Convert to fraction form
    131,996.70/197,995.05 = 72,801.90/x
  3. Step 3: Cross multiply
    131,996.70x = 197,995.05 × 72,801.90
  4. Step 4: Simplify right side
    131,996.70x = 14,414,415,830.60
  5. Step 5: Solve for x
    x = 14,414,415,830.60/131,996.70
  6. Step 6: Final answer
    x = 109,202.85

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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.