Home / 139,349.20-192,299.82-75,686.44

Finding the Fourth Proportional to 139,349.20, 192,299.82 and 75,686.44

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Solution

The fourth proportional to 139,349.20, 192,299.82 and 75,686.44 is: 104,446.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349.20 : 192,299.82 = 75,686.44 : x
  2. Step 2: Convert to fraction form
    139,349.20/192,299.82 = 75,686.44/x
  3. Step 3: Cross multiply
    139,349.20x = 192,299.82 × 75,686.44
  4. Step 4: Simplify right side
    139,349.20x = 14,554,488,788.44
  5. Step 5: Solve for x
    x = 14,554,488,788.44/139,349.20
  6. Step 6: Final answer
    x = 104,446.16

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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.