Home / 136,136.60-187,840.96-79,537.04

Finding the Fourth Proportional to 136,136.60, 187,840.96 and 79,537.04

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Solution

The fourth proportional to 136,136.60, 187,840.96 and 79,537.04 is: 109,745.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,136.60 : 187,840.96 = 79,537.04 : x
  2. Step 2: Convert to fraction form
    136,136.60/187,840.96 = 79,537.04/x
  3. Step 3: Cross multiply
    136,136.60x = 187,840.96 × 79,537.04
  4. Step 4: Simplify right side
    136,136.60x = 14,940,313,949.16
  5. Step 5: Solve for x
    x = 14,940,313,949.16/136,136.60
  6. Step 6: Final answer
    x = 109,745.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.