Home / 108,408.50-162,611.82-84,735.95

Finding the Fourth Proportional to 108,408.50, 162,611.82 and 84,735.95

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Solution

The fourth proportional to 108,408.50, 162,611.82 and 84,735.95 is: 127,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,408.50 : 162,611.82 = 84,735.95 : x
  2. Step 2: Convert to fraction form
    108,408.50/162,611.82 = 84,735.95/x
  3. Step 3: Cross multiply
    108,408.50x = 162,611.82 × 84,735.95
  4. Step 4: Simplify right side
    108,408.50x = 13,779,067,048.93
  5. Step 5: Solve for x
    x = 13,779,067,048.93/108,408.50
  6. Step 6: Final answer
    x = 127,103.20

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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.