Home / 165,780.20-248,670.30-143,229.80

Finding the Fourth Proportional to 165,780.20, 248,670.30 and 143,229.80

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Solution

The fourth proportional to 165,780.20, 248,670.30 and 143,229.80 is: 214,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,780.20 : 248,670.30 = 143,229.80 : x
  2. Step 2: Convert to fraction form
    165,780.20/248,670.30 = 143,229.80/x
  3. Step 3: Cross multiply
    165,780.20x = 248,670.30 × 143,229.80
  4. Step 4: Simplify right side
    165,780.20x = 35,616,997,334.94
  5. Step 5: Solve for x
    x = 35,616,997,334.94/165,780.20
  6. Step 6: Final answer
    x = 214,844.70

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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.