Home / 127,855.18-191,792.49-39,115.36

Finding the Fourth Proportional to 127,855.18, 191,792.49 and 39,115.36

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Solution

The fourth proportional to 127,855.18, 191,792.49 and 39,115.36 is: 58,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,855.18 : 191,792.49 = 39,115.36 : x
  2. Step 2: Convert to fraction form
    127,855.18/191,792.49 = 39,115.36/x
  3. Step 3: Cross multiply
    127,855.18x = 191,792.49 × 39,115.36
  4. Step 4: Simplify right side
    127,855.18x = 7,502,032,291.65
  5. Step 5: Solve for x
    x = 7,502,032,291.65/127,855.18
  6. Step 6: Final answer
    x = 58,676.01

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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.