Home / 143,021.88-214,534.08-36,405.96

Finding the Fourth Proportional to 143,021.88, 214,534.08 and 36,405.96

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Solution

The fourth proportional to 143,021.88, 214,534.08 and 36,405.96 is: 54,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,021.88 : 214,534.08 = 36,405.96 : x
  2. Step 2: Convert to fraction form
    143,021.88/214,534.08 = 36,405.96/x
  3. Step 3: Cross multiply
    143,021.88x = 214,534.08 × 36,405.96
  4. Step 4: Simplify right side
    143,021.88x = 7,810,319,135.12
  5. Step 5: Solve for x
    x = 7,810,319,135.12/143,021.88
  6. Step 6: Final answer
    x = 54,609.26

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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.