Home / 109,147.23-163,720.89-49,105.60

Finding the Fourth Proportional to 109,147.23, 163,720.89 and 49,105.60

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Solution

The fourth proportional to 109,147.23, 163,720.89 and 49,105.60 is: 73,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,147.23 : 163,720.89 = 49,105.60 : x
  2. Step 2: Convert to fraction form
    109,147.23/163,720.89 = 49,105.60/x
  3. Step 3: Cross multiply
    109,147.23x = 163,720.89 × 49,105.60
  4. Step 4: Simplify right side
    109,147.23x = 8,039,612,126.68
  5. Step 5: Solve for x
    x = 8,039,612,126.68/109,147.23
  6. Step 6: Final answer
    x = 73,658.42

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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.