Home / 109,975.20-165,045.72-80,469.16

Finding the Fourth Proportional to 109,975.20, 165,045.72 and 80,469.16

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Solution

The fourth proportional to 109,975.20, 165,045.72 and 80,469.16 is: 120,764.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,975.20 : 165,045.72 = 80,469.16 : x
  2. Step 2: Convert to fraction form
    109,975.20/165,045.72 = 80,469.16/x
  3. Step 3: Cross multiply
    109,975.20x = 165,045.72 × 80,469.16
  4. Step 4: Simplify right side
    109,975.20x = 13,281,090,450.00
  5. Step 5: Solve for x
    x = 13,281,090,450.00/109,975.20
  6. Step 6: Final answer
    x = 120,764.41

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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.