Home / 140,940.20-211,583.10-139,903.40

Finding the Fourth Proportional to 140,940.20, 211,583.10 and 139,903.40

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Solution

The fourth proportional to 140,940.20, 211,583.10 and 139,903.40 is: 210,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,940.20 : 211,583.10 = 139,903.40 : x
  2. Step 2: Convert to fraction form
    140,940.20/211,583.10 = 139,903.40/x
  3. Step 3: Cross multiply
    140,940.20x = 211,583.10 × 139,903.40
  4. Step 4: Simplify right side
    140,940.20x = 29,601,195,072.54
  5. Step 5: Solve for x
    x = 29,601,195,072.54/140,940.20
  6. Step 6: Final answer
    x = 210,026.63

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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.