Home / 111,355.10-166,993.74-52,218.62

Finding the Fourth Proportional to 111,355.10, 166,993.74 and 52,218.62

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Solution

The fourth proportional to 111,355.10, 166,993.74 and 52,218.62 is: 78,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,355.10 : 166,993.74 = 52,218.62 : x
  2. Step 2: Convert to fraction form
    111,355.10/166,993.74 = 52,218.62/x
  3. Step 3: Cross multiply
    111,355.10x = 166,993.74 × 52,218.62
  4. Step 4: Simplify right side
    111,355.10x = 8,720,182,651.44
  5. Step 5: Solve for x
    x = 8,720,182,651.44/111,355.10
  6. Step 6: Final answer
    x = 78,309.68

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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.