Home / 161,188.10-222,370.60-100,653.65

Finding the Fourth Proportional to 161,188.10, 222,370.60 and 100,653.65

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Solution

The fourth proportional to 161,188.10, 222,370.60 and 100,653.65 is: 138,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,188.10 : 222,370.60 = 100,653.65 : x
  2. Step 2: Convert to fraction form
    161,188.10/222,370.60 = 100,653.65/x
  3. Step 3: Cross multiply
    161,188.10x = 222,370.60 × 100,653.65
  4. Step 4: Simplify right side
    161,188.10x = 22,382,412,846.98
  5. Step 5: Solve for x
    x = 22,382,412,846.98/161,188.10
  6. Step 6: Final answer
    x = 138,858.96

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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.