Home / 110,221.74-165,280.77-76,979.34

Finding the Fourth Proportional to 110,221.74, 165,280.77 and 76,979.34

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Solution

The fourth proportional to 110,221.74, 165,280.77 and 76,979.34 is: 115,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,221.74 : 165,280.77 = 76,979.34 : x
  2. Step 2: Convert to fraction form
    110,221.74/165,280.77 = 76,979.34/x
  3. Step 3: Cross multiply
    110,221.74x = 165,280.77 × 76,979.34
  4. Step 4: Simplify right side
    110,221.74x = 12,723,204,589.29
  5. Step 5: Solve for x
    x = 12,723,204,589.29/110,221.74
  6. Step 6: Final answer
    x = 115,432.80

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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.