Home / 108,701.39-163,033.05-28,740.12

Finding the Fourth Proportional to 108,701.39, 163,033.05 and 28,740.12

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Solution

The fourth proportional to 108,701.39, 163,033.05 and 28,740.12 is: 43,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,701.39 : 163,033.05 = 28,740.12 : x
  2. Step 2: Convert to fraction form
    108,701.39/163,033.05 = 28,740.12/x
  3. Step 3: Cross multiply
    108,701.39x = 163,033.05 × 28,740.12
  4. Step 4: Simplify right side
    108,701.39x = 4,685,588,917.37
  5. Step 5: Solve for x
    x = 4,685,588,917.37/108,701.39
  6. Step 6: Final answer
    x = 43,105.14

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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.