Home / 215,883.09-323,700.71-66,083.31

Finding the Fourth Proportional to 215,883.09, 323,700.71 and 66,083.31

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Solution

The fourth proportional to 215,883.09, 323,700.71 and 66,083.31 is: 99,087.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,883.09 : 323,700.71 = 66,083.31 : x
  2. Step 2: Convert to fraction form
    215,883.09/323,700.71 = 66,083.31/x
  3. Step 3: Cross multiply
    215,883.09x = 323,700.71 × 66,083.31
  4. Step 4: Simplify right side
    215,883.09x = 21,391,214,035.73
  5. Step 5: Solve for x
    x = 21,391,214,035.73/215,883.09
  6. Step 6: Final answer
    x = 99,087.03

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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.