Home / 131,940.19-197,835.30-51,934.79

Finding the Fourth Proportional to 131,940.19, 197,835.30 and 51,934.79

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Solution

The fourth proportional to 131,940.19, 197,835.30 and 51,934.79 is: 77,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,940.19 : 197,835.30 = 51,934.79 : x
  2. Step 2: Convert to fraction form
    131,940.19/197,835.30 = 51,934.79/x
  3. Step 3: Cross multiply
    131,940.19x = 197,835.30 × 51,934.79
  4. Step 4: Simplify right side
    131,940.19x = 10,274,534,760.09
  5. Step 5: Solve for x
    x = 10,274,534,760.09/131,940.19
  6. Step 6: Final answer
    x = 77,872.67

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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.