Home / 141,932.88-212,658.30-85,654.73

Finding the Fourth Proportional to 141,932.88, 212,658.30 and 85,654.73

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Solution

The fourth proportional to 141,932.88, 212,658.30 and 85,654.73 is: 128,336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,932.88 : 212,658.30 = 85,654.73 : x
  2. Step 2: Convert to fraction form
    141,932.88/212,658.30 = 85,654.73/x
  3. Step 3: Cross multiply
    141,932.88x = 212,658.30 × 85,654.73
  4. Step 4: Simplify right side
    141,932.88x = 18,215,188,205.47
  5. Step 5: Solve for x
    x = 18,215,188,205.47/141,932.88
  6. Step 6: Final answer
    x = 128,336.63

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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.