Home / 185,986.08-278,976.72-45,745.92

Finding the Fourth Proportional to 185,986.08, 278,976.72 and 45,745.92

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Solution

The fourth proportional to 185,986.08, 278,976.72 and 45,745.92 is: 68,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,986.08 : 278,976.72 = 45,745.92 : x
  2. Step 2: Convert to fraction form
    185,986.08/278,976.72 = 45,745.92/x
  3. Step 3: Cross multiply
    185,986.08x = 278,976.72 × 45,745.92
  4. Step 4: Simplify right side
    185,986.08x = 12,762,046,714.98
  5. Step 5: Solve for x
    x = 12,762,046,714.98/185,986.08
  6. Step 6: Final answer
    x = 68,618.29

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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.