Home / 127,884.40-191,819.68-39,137.92

Finding the Fourth Proportional to 127,884.40, 191,819.68 and 39,137.92

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Solution

The fourth proportional to 127,884.40, 191,819.68 and 39,137.92 is: 58,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,884.40 : 191,819.68 = 39,137.92 : x
  2. Step 2: Convert to fraction form
    127,884.40/191,819.68 = 39,137.92/x
  3. Step 3: Cross multiply
    127,884.40x = 191,819.68 × 39,137.92
  4. Step 4: Simplify right side
    127,884.40x = 7,507,423,290.27
  5. Step 5: Solve for x
    x = 7,507,423,290.27/127,884.40
  6. Step 6: Final answer
    x = 58,704.76

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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.