Home / 108,899.12-163,354.82-38,778.44

Finding the Fourth Proportional to 108,899.12, 163,354.82 and 38,778.44

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Solution

The fourth proportional to 108,899.12, 163,354.82 and 38,778.44 is: 58,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,899.12 : 163,354.82 = 38,778.44 : x
  2. Step 2: Convert to fraction form
    108,899.12/163,354.82 = 38,778.44/x
  3. Step 3: Cross multiply
    108,899.12x = 163,354.82 × 38,778.44
  4. Step 4: Simplify right side
    108,899.12x = 6,334,644,075.41
  5. Step 5: Solve for x
    x = 6,334,644,075.41/108,899.12
  6. Step 6: Final answer
    x = 58,169.84

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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.