Home / 325,917.90-488,855.44-112,636.20

Finding the Fourth Proportional to 325,917.90, 488,855.44 and 112,636.20

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Solution

The fourth proportional to 325,917.90, 488,855.44 and 112,636.20 is: 168,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,917.90 : 488,855.44 = 112,636.20 : x
  2. Step 2: Convert to fraction form
    325,917.90/488,855.44 = 112,636.20/x
  3. Step 3: Cross multiply
    325,917.90x = 488,855.44 × 112,636.20
  4. Step 4: Simplify right side
    325,917.90x = 55,062,816,801.82
  5. Step 5: Solve for x
    x = 55,062,816,801.82/325,917.90
  6. Step 6: Final answer
    x = 168,946.89

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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.