Home / 143,051.31-214,576.97-76,289.18

Finding the Fourth Proportional to 143,051.31, 214,576.97 and 76,289.18

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Solution

The fourth proportional to 143,051.31, 214,576.97 and 76,289.18 is: 114,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,051.31 : 214,576.97 = 76,289.18 : x
  2. Step 2: Convert to fraction form
    143,051.31/214,576.97 = 76,289.18/x
  3. Step 3: Cross multiply
    143,051.31x = 214,576.97 × 76,289.18
  4. Step 4: Simplify right side
    143,051.31x = 16,369,899,633.85
  5. Step 5: Solve for x
    x = 16,369,899,633.85/143,051.31
  6. Step 6: Final answer
    x = 114,433.76

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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.