Home / 141,321.40-211,982.10-82,223.80

Finding the Fourth Proportional to 141,321.40, 211,982.10 and 82,223.80

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Solution

The fourth proportional to 141,321.40, 211,982.10 and 82,223.80 is: 123,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,321.40 : 211,982.10 = 82,223.80 : x
  2. Step 2: Convert to fraction form
    141,321.40/211,982.10 = 82,223.80/x
  3. Step 3: Cross multiply
    141,321.40x = 211,982.10 × 82,223.80
  4. Step 4: Simplify right side
    141,321.40x = 17,429,973,793.98
  5. Step 5: Solve for x
    x = 17,429,973,793.98/141,321.40
  6. Step 6: Final answer
    x = 123,335.70

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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.