Home / 174,680.90-261,794.55-80,987.30

Finding the Fourth Proportional to 174,680.90, 261,794.55 and 80,987.30

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Solution

The fourth proportional to 174,680.90, 261,794.55 and 80,987.30 is: 121,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,680.90 : 261,794.55 = 80,987.30 : x
  2. Step 2: Convert to fraction form
    174,680.90/261,794.55 = 80,987.30/x
  3. Step 3: Cross multiply
    174,680.90x = 261,794.55 × 80,987.30
  4. Step 4: Simplify right side
    174,680.90x = 21,202,033,759.22
  5. Step 5: Solve for x
    x = 21,202,033,759.22/174,680.90
  6. Step 6: Final answer
    x = 121,375.80

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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.