Home / 248,542.20-372,875.40-80,078.40

Finding the Fourth Proportional to 248,542.20, 372,875.40 and 80,078.40

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Solution

The fourth proportional to 248,542.20, 372,875.40 and 80,078.40 is: 120,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,542.20 : 372,875.40 = 80,078.40 : x
  2. Step 2: Convert to fraction form
    248,542.20/372,875.40 = 80,078.40/x
  3. Step 3: Cross multiply
    248,542.20x = 372,875.40 × 80,078.40
  4. Step 4: Simplify right side
    248,542.20x = 29,859,265,431.36
  5. Step 5: Solve for x
    x = 29,859,265,431.36/248,542.20
  6. Step 6: Final answer
    x = 120,137.61

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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.