Home / 140,988.21-211,108.19-110,287.40

Finding the Fourth Proportional to 140,988.21, 211,108.19 and 110,287.40

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Solution

The fourth proportional to 140,988.21, 211,108.19 and 110,287.40 is: 165,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,988.21 : 211,108.19 = 110,287.40 : x
  2. Step 2: Convert to fraction form
    140,988.21/211,108.19 = 110,287.40/x
  3. Step 3: Cross multiply
    140,988.21x = 211,108.19 × 110,287.40
  4. Step 4: Simplify right side
    140,988.21x = 23,282,571,786.83
  5. Step 5: Solve for x
    x = 23,282,571,786.83/140,988.21
  6. Step 6: Final answer
    x = 165,138.43

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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.