Home / 131,161.18-196,334.52-71,040.34

Finding the Fourth Proportional to 131,161.18, 196,334.52 and 71,040.34

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Solution

The fourth proportional to 131,161.18, 196,334.52 and 71,040.34 is: 106,339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,161.18 : 196,334.52 = 71,040.34 : x
  2. Step 2: Convert to fraction form
    131,161.18/196,334.52 = 71,040.34/x
  3. Step 3: Cross multiply
    131,161.18x = 196,334.52 × 71,040.34
  4. Step 4: Simplify right side
    131,161.18x = 13,947,669,717.66
  5. Step 5: Solve for x
    x = 13,947,669,717.66/131,161.18
  6. Step 6: Final answer
    x = 106,339.92

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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.