Home / 187,791.04-259,143.72-102,911.68

Finding the Fourth Proportional to 187,791.04, 259,143.72 and 102,911.68

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Solution

The fourth proportional to 187,791.04, 259,143.72 and 102,911.68 is: 142,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,791.04 : 259,143.72 = 102,911.68 : x
  2. Step 2: Convert to fraction form
    187,791.04/259,143.72 = 102,911.68/x
  3. Step 3: Cross multiply
    187,791.04x = 259,143.72 × 102,911.68
  4. Step 4: Simplify right side
    187,791.04x = 26,668,915,586.65
  5. Step 5: Solve for x
    x = 26,668,915,586.65/187,791.04
  6. Step 6: Final answer
    x = 142,013.78

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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.