Home / 131,217.85-196,709.54-51,237.21

Finding the Fourth Proportional to 131,217.85, 196,709.54 and 51,237.21

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Solution

The fourth proportional to 131,217.85, 196,709.54 and 51,237.21 is: 76,810.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,217.85 : 196,709.54 = 51,237.21 : x
  2. Step 2: Convert to fraction form
    131,217.85/196,709.54 = 51,237.21/x
  3. Step 3: Cross multiply
    131,217.85x = 196,709.54 × 51,237.21
  4. Step 4: Simplify right side
    131,217.85x = 10,078,848,009.98
  5. Step 5: Solve for x
    x = 10,078,848,009.98/131,217.85
  6. Step 6: Final answer
    x = 76,810.04

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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.