Home / 110,279.21-165,435.21-51,120.86

Finding the Fourth Proportional to 110,279.21, 165,435.21 and 51,120.86

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Solution

The fourth proportional to 110,279.21, 165,435.21 and 51,120.86 is: 76,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,279.21 : 165,435.21 = 51,120.86 : x
  2. Step 2: Convert to fraction form
    110,279.21/165,435.21 = 51,120.86/x
  3. Step 3: Cross multiply
    110,279.21x = 165,435.21 × 51,120.86
  4. Step 4: Simplify right side
    110,279.21x = 8,457,189,382.30
  5. Step 5: Solve for x
    x = 8,457,189,382.30/110,279.21
  6. Step 6: Final answer
    x = 76,688.89

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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.