Home / 143,829.72-215,775.72-55,083.24

Finding the Fourth Proportional to 143,829.72, 215,775.72 and 55,083.24

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Solution

The fourth proportional to 143,829.72, 215,775.72 and 55,083.24 is: 82,636.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,829.72 : 215,775.72 = 55,083.24 : x
  2. Step 2: Convert to fraction form
    143,829.72/215,775.72 = 55,083.24/x
  3. Step 3: Cross multiply
    143,829.72x = 215,775.72 × 55,083.24
  4. Step 4: Simplify right side
    143,829.72x = 11,885,625,770.93
  5. Step 5: Solve for x
    x = 11,885,625,770.93/143,829.72
  6. Step 6: Final answer
    x = 82,636.79

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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.