Home / 136,069.70-204,136.95-57,143.30

Finding the Fourth Proportional to 136,069.70, 204,136.95 and 57,143.30

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Solution

The fourth proportional to 136,069.70, 204,136.95 and 57,143.30 is: 85,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,069.70 : 204,136.95 = 57,143.30 : x
  2. Step 2: Convert to fraction form
    136,069.70/204,136.95 = 57,143.30/x
  3. Step 3: Cross multiply
    136,069.70x = 204,136.95 × 57,143.30
  4. Step 4: Simplify right side
    136,069.70x = 11,665,058,974.94
  5. Step 5: Solve for x
    x = 11,665,058,974.94/136,069.70
  6. Step 6: Final answer
    x = 85,728.56

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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.