Home / 108,761.09-163,135.08-64,668.44

Finding the Fourth Proportional to 108,761.09, 163,135.08 and 64,668.44

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Solution

The fourth proportional to 108,761.09, 163,135.08 and 64,668.44 is: 96,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,761.09 : 163,135.08 = 64,668.44 : x
  2. Step 2: Convert to fraction form
    108,761.09/163,135.08 = 64,668.44/x
  3. Step 3: Cross multiply
    108,761.09x = 163,135.08 × 64,668.44
  4. Step 4: Simplify right side
    108,761.09x = 10,549,690,317.20
  5. Step 5: Solve for x
    x = 10,549,690,317.20/108,761.09
  6. Step 6: Final answer
    x = 96,998.76

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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.