Home / 140,213.44-193,491.92-79,782.72

Finding the Fourth Proportional to 140,213.44, 193,491.92 and 79,782.72

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Solution

The fourth proportional to 140,213.44, 193,491.92 and 79,782.72 is: 110,098.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,213.44 : 193,491.92 = 79,782.72 : x
  2. Step 2: Convert to fraction form
    140,213.44/193,491.92 = 79,782.72/x
  3. Step 3: Cross multiply
    140,213.44x = 193,491.92 × 79,782.72
  4. Step 4: Simplify right side
    140,213.44x = 15,437,311,675.62
  5. Step 5: Solve for x
    x = 15,437,311,675.62/140,213.44
  6. Step 6: Final answer
    x = 110,098.66

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1.5x scale

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.