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Finding the Fourth Proportional to 140,604.40, 211,111.40 and 99,234.80

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Solution

The fourth proportional to 140,604.40, 211,111.40 and 99,234.80 is: 148,996.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,604.40 : 211,111.40 = 99,234.80 : x
  2. Step 2: Convert to fraction form
    140,604.40/211,111.40 = 99,234.80/x
  3. Step 3: Cross multiply
    140,604.40x = 211,111.40 × 99,234.80
  4. Step 4: Simplify right side
    140,604.40x = 20,949,597,556.72
  5. Step 5: Solve for x
    x = 20,949,597,556.72/140,604.40
  6. Step 6: Final answer
    x = 148,996.74

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1.5x scale

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.