Home / 193,819.85-290,433.01-130,405.06

Finding the Fourth Proportional to 193,819.85, 290,433.01 and 130,405.06

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Solution

The fourth proportional to 193,819.85, 290,433.01 and 130,405.06 is: 195,407.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,819.85 : 290,433.01 = 130,405.06 : x
  2. Step 2: Convert to fraction form
    193,819.85/290,433.01 = 130,405.06/x
  3. Step 3: Cross multiply
    193,819.85x = 290,433.01 × 130,405.06
  4. Step 4: Simplify right side
    193,819.85x = 37,873,932,742.88
  5. Step 5: Solve for x
    x = 37,873,932,742.88/193,819.85
  6. Step 6: Final answer
    x = 195,407.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.