Home / 190,514.11-262,907.31-109,939.91

Finding the Fourth Proportional to 190,514.11, 262,907.31 and 109,939.91

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Solution

The fourth proportional to 190,514.11, 262,907.31 and 109,939.91 is: 151,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,514.11 : 262,907.31 = 109,939.91 : x
  2. Step 2: Convert to fraction form
    190,514.11/262,907.31 = 109,939.91/x
  3. Step 3: Cross multiply
    190,514.11x = 262,907.31 × 109,939.91
  4. Step 4: Simplify right side
    190,514.11x = 28,904,005,999.74
  5. Step 5: Solve for x
    x = 28,904,005,999.74/190,514.11
  6. Step 6: Final answer
    x = 151,715.83

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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.