Home / 108,408.05-162,612.07-71,463.41

Finding the Fourth Proportional to 108,408.05, 162,612.07 and 71,463.41

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Solution

The fourth proportional to 108,408.05, 162,612.07 and 71,463.41 is: 107,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,408.05 : 162,612.07 = 71,463.41 : x
  2. Step 2: Convert to fraction form
    108,408.05/162,612.07 = 71,463.41/x
  3. Step 3: Cross multiply
    108,408.05x = 162,612.07 × 71,463.41
  4. Step 4: Simplify right side
    108,408.05x = 11,620,813,029.36
  5. Step 5: Solve for x
    x = 11,620,813,029.36/108,408.05
  6. Step 6: Final answer
    x = 107,195.11

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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.