Home / 131,255.81-196,960.17-55,349.70

Finding the Fourth Proportional to 131,255.81, 196,960.17 and 55,349.70

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Solution

The fourth proportional to 131,255.81, 196,960.17 and 55,349.70 is: 83,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,255.81 : 196,960.17 = 55,349.70 : x
  2. Step 2: Convert to fraction form
    131,255.81/196,960.17 = 55,349.70/x
  3. Step 3: Cross multiply
    131,255.81x = 196,960.17 × 55,349.70
  4. Step 4: Simplify right side
    131,255.81x = 10,901,686,321.45
  5. Step 5: Solve for x
    x = 10,901,686,321.45/131,255.81
  6. Step 6: Final answer
    x = 83,056.79

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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.