Home / 146,078.20-219,101.10-40,907.80

Finding the Fourth Proportional to 146,078.20, 219,101.10 and 40,907.80

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Solution

The fourth proportional to 146,078.20, 219,101.10 and 40,907.80 is: 61,357.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,078.20 : 219,101.10 = 40,907.80 : x
  2. Step 2: Convert to fraction form
    146,078.20/219,101.10 = 40,907.80/x
  3. Step 3: Cross multiply
    146,078.20x = 219,101.10 × 40,907.80
  4. Step 4: Simplify right side
    146,078.20x = 8,962,943,978.58
  5. Step 5: Solve for x
    x = 8,962,943,978.58/146,078.20
  6. Step 6: Final answer
    x = 61,357.16

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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.