Home / 115,408.40-173,136.90-36,530.60

Finding the Fourth Proportional to 115,408.40, 173,136.90 and 36,530.60

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Solution

The fourth proportional to 115,408.40, 173,136.90 and 36,530.60 is: 54,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,408.40 : 173,136.90 = 36,530.60 : x
  2. Step 2: Convert to fraction form
    115,408.40/173,136.90 = 36,530.60/x
  3. Step 3: Cross multiply
    115,408.40x = 173,136.90 × 36,530.60
  4. Step 4: Simplify right side
    115,408.40x = 6,324,794,839.14
  5. Step 5: Solve for x
    x = 6,324,794,839.14/115,408.40
  6. Step 6: Final answer
    x = 54,803.59

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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.