Home / 131,180.21-196,776.44-42,440.66

Finding the Fourth Proportional to 131,180.21, 196,776.44 and 42,440.66

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Solution

The fourth proportional to 131,180.21, 196,776.44 and 42,440.66 is: 63,662.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,180.21 : 196,776.44 = 42,440.66 : x
  2. Step 2: Convert to fraction form
    131,180.21/196,776.44 = 42,440.66/x
  3. Step 3: Cross multiply
    131,180.21x = 196,776.44 × 42,440.66
  4. Step 4: Simplify right side
    131,180.21x = 8,351,321,687.03
  5. Step 5: Solve for x
    x = 8,351,321,687.03/131,180.21
  6. Step 6: Final answer
    x = 63,662.97

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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.