Home / 106,299.90-146,704.32-79,395.75

Finding the Fourth Proportional to 106,299.90, 146,704.32 and 79,395.75

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Solution

The fourth proportional to 106,299.90, 146,704.32 and 79,395.75 is: 109,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,299.90 : 146,704.32 = 79,395.75 : x
  2. Step 2: Convert to fraction form
    106,299.90/146,704.32 = 79,395.75/x
  3. Step 3: Cross multiply
    106,299.90x = 146,704.32 × 79,395.75
  4. Step 4: Simplify right side
    106,299.90x = 11,647,699,514.64
  5. Step 5: Solve for x
    x = 11,647,699,514.64/106,299.90
  6. Step 6: Final answer
    x = 109,573.95

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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.