Home / 143,316.60-214,821.30-54,535.80

Finding the Fourth Proportional to 143,316.60, 214,821.30 and 54,535.80

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Solution

The fourth proportional to 143,316.60, 214,821.30 and 54,535.80 is: 81,745.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,316.60 : 214,821.30 = 54,535.80 : x
  2. Step 2: Convert to fraction form
    143,316.60/214,821.30 = 54,535.80/x
  3. Step 3: Cross multiply
    143,316.60x = 214,821.30 × 54,535.80
  4. Step 4: Simplify right side
    143,316.60x = 11,715,451,452.54
  5. Step 5: Solve for x
    x = 11,715,451,452.54/143,316.60
  6. Step 6: Final answer
    x = 81,745.25

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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.