Home / 131,201.30-196,780.86-46,945.78

Finding the Fourth Proportional to 131,201.30, 196,780.86 and 46,945.78

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Solution

The fourth proportional to 131,201.30, 196,780.86 and 46,945.78 is: 70,411.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,201.30 : 196,780.86 = 46,945.78 : x
  2. Step 2: Convert to fraction form
    131,201.30/196,780.86 = 46,945.78/x
  3. Step 3: Cross multiply
    131,201.30x = 196,780.86 × 46,945.78
  4. Step 4: Simplify right side
    131,201.30x = 9,238,030,469.82
  5. Step 5: Solve for x
    x = 9,238,030,469.82/131,201.30
  6. Step 6: Final answer
    x = 70,411.12

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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.