Home / 185,419.20-278,128.80-110,623.80

Finding the Fourth Proportional to 185,419.20, 278,128.80 and 110,623.80

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Solution

The fourth proportional to 185,419.20, 278,128.80 and 110,623.80 is: 165,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,419.20 : 278,128.80 = 110,623.80 : x
  2. Step 2: Convert to fraction form
    185,419.20/278,128.80 = 110,623.80/x
  3. Step 3: Cross multiply
    185,419.20x = 278,128.80 × 110,623.80
  4. Step 4: Simplify right side
    185,419.20x = 30,767,664,745.44
  5. Step 5: Solve for x
    x = 30,767,664,745.44/185,419.20
  6. Step 6: Final answer
    x = 165,935.70

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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.