Home / 127,979.11-191,996.67-39,239.54

Finding the Fourth Proportional to 127,979.11, 191,996.67 and 39,239.54

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Solution

The fourth proportional to 127,979.11, 191,996.67 and 39,239.54 is: 58,867.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,979.11 : 191,996.67 = 39,239.54 : x
  2. Step 2: Convert to fraction form
    127,979.11/191,996.67 = 39,239.54/x
  3. Step 3: Cross multiply
    127,979.11x = 191,996.67 × 39,239.54
  4. Step 4: Simplify right side
    127,979.11x = 7,533,860,052.35
  5. Step 5: Solve for x
    x = 7,533,860,052.35/127,979.11
  6. Step 6: Final answer
    x = 58,867.89

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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.