Home / 215,910.39-323,431.85-107,513.19

Finding the Fourth Proportional to 215,910.39, 323,431.85 and 107,513.19

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Solution

The fourth proportional to 215,910.39, 323,431.85 and 107,513.19 is: 161,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,910.39 : 323,431.85 = 107,513.19 : x
  2. Step 2: Convert to fraction form
    215,910.39/323,431.85 = 107,513.19/x
  3. Step 3: Cross multiply
    215,910.39x = 323,431.85 × 107,513.19
  4. Step 4: Simplify right side
    215,910.39x = 34,773,189,941.10
  5. Step 5: Solve for x
    x = 34,773,189,941.10/215,910.39
  6. Step 6: Final answer
    x = 161,053.81

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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.