Home / 130,939.92-196,405.98-36,175.78

Finding the Fourth Proportional to 130,939.92, 196,405.98 and 36,175.78

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Solution

The fourth proportional to 130,939.92, 196,405.98 and 36,175.78 is: 54,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,939.92 : 196,405.98 = 36,175.78 : x
  2. Step 2: Convert to fraction form
    130,939.92/196,405.98 = 36,175.78/x
  3. Step 3: Cross multiply
    130,939.92x = 196,405.98 × 36,175.78
  4. Step 4: Simplify right side
    130,939.92x = 7,105,139,523.16
  5. Step 5: Solve for x
    x = 7,105,139,523.16/130,939.92
  6. Step 6: Final answer
    x = 54,262.59

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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.