Home / 187,790.38-259,150.92-102,907.64

Finding the Fourth Proportional to 187,790.38, 259,150.92 and 102,907.64

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Solution

The fourth proportional to 187,790.38, 259,150.92 and 102,907.64 is: 142,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,790.38 : 259,150.92 = 102,907.64 : x
  2. Step 2: Convert to fraction form
    187,790.38/259,150.92 = 102,907.64/x
  3. Step 3: Cross multiply
    187,790.38x = 259,150.92 × 102,907.64
  4. Step 4: Simplify right side
    187,790.38x = 26,668,609,581.03
  5. Step 5: Solve for x
    x = 26,668,609,581.03/187,790.38
  6. Step 6: Final answer
    x = 142,012.65

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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.