Home / 143,167.54-214,548.20-105,431.66

Finding the Fourth Proportional to 143,167.54, 214,548.20 and 105,431.66

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Solution

The fourth proportional to 143,167.54, 214,548.20 and 105,431.66 is: 157,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,167.54 : 214,548.20 = 105,431.66 : x
  2. Step 2: Convert to fraction form
    143,167.54/214,548.20 = 105,431.66/x
  3. Step 3: Cross multiply
    143,167.54x = 214,548.20 × 105,431.66
  4. Step 4: Simplify right side
    143,167.54x = 22,620,173,675.96
  5. Step 5: Solve for x
    x = 22,620,173,675.96/143,167.54
  6. Step 6: Final answer
    x = 157,997.92

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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.