Home / 143,261.89-214,892.60-38,080.86

Finding the Fourth Proportional to 143,261.89, 214,892.60 and 38,080.86

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Solution

The fourth proportional to 143,261.89, 214,892.60 and 38,080.86 is: 57,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,261.89 : 214,892.60 = 38,080.86 : x
  2. Step 2: Convert to fraction form
    143,261.89/214,892.60 = 38,080.86/x
  3. Step 3: Cross multiply
    143,261.89x = 214,892.60 × 38,080.86
  4. Step 4: Simplify right side
    143,261.89x = 8,183,295,015.64
  5. Step 5: Solve for x
    x = 8,183,295,015.64/143,261.89
  6. Step 6: Final answer
    x = 57,121.23

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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.