Home / 143,008.16-214,568.67-54,285.21

Finding the Fourth Proportional to 143,008.16, 214,568.67 and 54,285.21

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Solution

The fourth proportional to 143,008.16, 214,568.67 and 54,285.21 is: 81,449.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,008.16 : 214,568.67 = 54,285.21 : x
  2. Step 2: Convert to fraction form
    143,008.16/214,568.67 = 54,285.21/x
  3. Step 3: Cross multiply
    143,008.16x = 214,568.67 × 54,285.21
  4. Step 4: Simplify right side
    143,008.16x = 11,647,905,310.37
  5. Step 5: Solve for x
    x = 11,647,905,310.37/143,008.16
  6. Step 6: Final answer
    x = 81,449.24

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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.