Home / 252,143.32-378,242.68-125,815.36

Finding the Fourth Proportional to 252,143.32, 378,242.68 and 125,815.36

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Solution

The fourth proportional to 252,143.32, 378,242.68 and 125,815.36 is: 188,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,143.32 : 378,242.68 = 125,815.36 : x
  2. Step 2: Convert to fraction form
    252,143.32/378,242.68 = 125,815.36/x
  3. Step 3: Cross multiply
    252,143.32x = 378,242.68 × 125,815.36
  4. Step 4: Simplify right side
    252,143.32x = 47,588,738,951.56
  5. Step 5: Solve for x
    x = 47,588,738,951.56/252,143.32
  6. Step 6: Final answer
    x = 188,736.86

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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.