Home / 248,098.20-372,147.30-81,864.60

Finding the Fourth Proportional to 248,098.20, 372,147.30 and 81,864.60

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Solution

The fourth proportional to 248,098.20, 372,147.30 and 81,864.60 is: 122,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,098.20 : 372,147.30 = 81,864.60 : x
  2. Step 2: Convert to fraction form
    248,098.20/372,147.30 = 81,864.60/x
  3. Step 3: Cross multiply
    248,098.20x = 372,147.30 × 81,864.60
  4. Step 4: Simplify right side
    248,098.20x = 30,465,689,855.58
  5. Step 5: Solve for x
    x = 30,465,689,855.58/248,098.20
  6. Step 6: Final answer
    x = 122,796.90

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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.