Home / 142,974.20-214,461.30-54,198.20

Finding the Fourth Proportional to 142,974.20, 214,461.30 and 54,198.20

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Solution

The fourth proportional to 142,974.20, 214,461.30 and 54,198.20 is: 81,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974.20 : 214,461.30 = 54,198.20 : x
  2. Step 2: Convert to fraction form
    142,974.20/214,461.30 = 54,198.20/x
  3. Step 3: Cross multiply
    142,974.20x = 214,461.30 × 54,198.20
  4. Step 4: Simplify right side
    142,974.20x = 11,623,416,429.66
  5. Step 5: Solve for x
    x = 11,623,416,429.66/142,974.20
  6. Step 6: Final answer
    x = 81,297.30

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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.