Home / 143,135.10-214,809.30-54,561.60

Finding the Fourth Proportional to 143,135.10, 214,809.30 and 54,561.60

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Solution

The fourth proportional to 143,135.10, 214,809.30 and 54,561.60 is: 81,883.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,135.10 : 214,809.30 = 54,561.60 : x
  2. Step 2: Convert to fraction form
    143,135.10/214,809.30 = 54,561.60/x
  3. Step 3: Cross multiply
    143,135.10x = 214,809.30 × 54,561.60
  4. Step 4: Simplify right side
    143,135.10x = 11,720,339,102.88
  5. Step 5: Solve for x
    x = 11,720,339,102.88/143,135.10
  6. Step 6: Final answer
    x = 81,883.05

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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.