Home / 139,896.56-193,057.26-76,234.34

Finding the Fourth Proportional to 139,896.56, 193,057.26 and 76,234.34

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Solution

The fourth proportional to 139,896.56, 193,057.26 and 76,234.34 is: 105,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,896.56 : 193,057.26 = 76,234.34 : x
  2. Step 2: Convert to fraction form
    139,896.56/193,057.26 = 76,234.34/x
  3. Step 3: Cross multiply
    139,896.56x = 193,057.26 × 76,234.34
  4. Step 4: Simplify right side
    139,896.56x = 14,717,592,798.31
  5. Step 5: Solve for x
    x = 14,717,592,798.31/139,896.56
  6. Step 6: Final answer
    x = 105,203.39

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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.