Home / 143,633.51-215,481.14-71,625.66

Finding the Fourth Proportional to 143,633.51, 215,481.14 and 71,625.66

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Solution

The fourth proportional to 143,633.51, 215,481.14 and 71,625.66 is: 107,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,633.51 : 215,481.14 = 71,625.66 : x
  2. Step 2: Convert to fraction form
    143,633.51/215,481.14 = 71,625.66/x
  3. Step 3: Cross multiply
    143,633.51x = 215,481.14 × 71,625.66
  4. Step 4: Simplify right side
    143,633.51x = 15,433,978,870.05
  5. Step 5: Solve for x
    x = 15,433,978,870.05/143,633.51
  6. Step 6: Final answer
    x = 107,453.89

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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.