Home / 140,961.12-194,514.32-79,704.32

Finding the Fourth Proportional to 140,961.12, 194,514.32 and 79,704.32

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Solution

The fourth proportional to 140,961.12, 194,514.32 and 79,704.32 is: 109,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,961.12 : 194,514.32 = 79,704.32 : x
  2. Step 2: Convert to fraction form
    140,961.12/194,514.32 = 79,704.32/x
  3. Step 3: Cross multiply
    140,961.12x = 194,514.32 × 79,704.32
  4. Step 4: Simplify right side
    140,961.12x = 15,503,630,234.77
  5. Step 5: Solve for x
    x = 15,503,630,234.77/140,961.12
  6. Step 6: Final answer
    x = 109,985.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.