Home / 185,883.18-278,668.03-80,622.87

Finding the Fourth Proportional to 185,883.18, 278,668.03 and 80,622.87

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Solution

The fourth proportional to 185,883.18, 278,668.03 and 80,622.87 is: 120,866.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,883.18 : 278,668.03 = 80,622.87 : x
  2. Step 2: Convert to fraction form
    185,883.18/278,668.03 = 80,622.87/x
  3. Step 3: Cross multiply
    185,883.18x = 278,668.03 × 80,622.87
  4. Step 4: Simplify right side
    185,883.18x = 22,467,016,355.85
  5. Step 5: Solve for x
    x = 22,467,016,355.85/185,883.18
  6. Step 6: Final answer
    x = 120,866.32

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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.