Home / 140,558.10-193,971.96-76,896.96

Finding the Fourth Proportional to 140,558.10, 193,971.96 and 76,896.96

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Solution

The fourth proportional to 140,558.10, 193,971.96 and 76,896.96 is: 106,118.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,558.10 : 193,971.96 = 76,896.96 : x
  2. Step 2: Convert to fraction form
    140,558.10/193,971.96 = 76,896.96/x
  3. Step 3: Cross multiply
    140,558.10x = 193,971.96 × 76,896.96
  4. Step 4: Simplify right side
    140,558.10x = 14,915,854,049.24
  5. Step 5: Solve for x
    x = 14,915,854,049.24/140,558.10
  6. Step 6: Final answer
    x = 106,118.78

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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.