Home / 108,930.54-163,405.83-42,375.66

Finding the Fourth Proportional to 108,930.54, 163,405.83 and 42,375.66

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Solution

The fourth proportional to 108,930.54, 163,405.83 and 42,375.66 is: 63,567.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,930.54 : 163,405.83 = 42,375.66 : x
  2. Step 2: Convert to fraction form
    108,930.54/163,405.83 = 42,375.66/x
  3. Step 3: Cross multiply
    108,930.54x = 163,405.83 × 42,375.66
  4. Step 4: Simplify right side
    108,930.54x = 6,924,429,894.10
  5. Step 5: Solve for x
    x = 6,924,429,894.10/108,930.54
  6. Step 6: Final answer
    x = 63,567.39

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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.