Home / 127,853.57-191,788.05-39,107.85

Finding the Fourth Proportional to 127,853.57, 191,788.05 and 39,107.85

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Solution

The fourth proportional to 127,853.57, 191,788.05 and 39,107.85 is: 58,664.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,853.57 : 191,788.05 = 39,107.85 : x
  2. Step 2: Convert to fraction form
    127,853.57/191,788.05 = 39,107.85/x
  3. Step 3: Cross multiply
    127,853.57x = 191,788.05 × 39,107.85
  4. Step 4: Simplify right side
    127,853.57x = 7,500,418,291.19
  5. Step 5: Solve for x
    x = 7,500,418,291.19/127,853.57
  6. Step 6: Final answer
    x = 58,664.13

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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.