Home / 108,003.20-161,745.60-52,534.40

Finding the Fourth Proportional to 108,003.20, 161,745.60 and 52,534.40

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Solution

The fourth proportional to 108,003.20, 161,745.60 and 52,534.40 is: 78,675.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,003.20 : 161,745.60 = 52,534.40 : x
  2. Step 2: Convert to fraction form
    108,003.20/161,745.60 = 52,534.40/x
  3. Step 3: Cross multiply
    108,003.20x = 161,745.60 × 52,534.40
  4. Step 4: Simplify right side
    108,003.20x = 8,497,208,048.64
  5. Step 5: Solve for x
    x = 8,497,208,048.64/108,003.20
  6. Step 6: Final answer
    x = 78,675.52

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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.