Home / 127,270.74-175,721.49-79,545.54

Finding the Fourth Proportional to 127,270.74, 175,721.49 and 79,545.54

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Solution

The fourth proportional to 127,270.74, 175,721.49 and 79,545.54 is: 109,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,270.74 : 175,721.49 = 79,545.54 : x
  2. Step 2: Convert to fraction form
    127,270.74/175,721.49 = 79,545.54/x
  3. Step 3: Cross multiply
    127,270.74x = 175,721.49 × 79,545.54
  4. Step 4: Simplify right side
    127,270.74x = 13,977,860,811.65
  5. Step 5: Solve for x
    x = 13,977,860,811.65/127,270.74
  6. Step 6: Final answer
    x = 109,827.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.