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Finding the Fourth Proportional to 188,119.65, 259,722.82 and 130,741.89

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Solution

The fourth proportional to 188,119.65, 259,722.82 and 130,741.89 is: 180,505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,119.65 : 259,722.82 = 130,741.89 : x
  2. Step 2: Convert to fraction form
    188,119.65/259,722.82 = 130,741.89/x
  3. Step 3: Cross multiply
    188,119.65x = 259,722.82 × 130,741.89
  4. Step 4: Simplify right side
    188,119.65x = 33,956,652,362.93
  5. Step 5: Solve for x
    x = 33,956,652,362.93/188,119.65
  6. Step 6: Final answer
    x = 180,505.61

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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.